SSC CGL (Staff Selection Commission Combined Graduate Level) — Questions and Answers

Question 1: Pipes A and B can fill a tank in 6 hours and 9 hours respectively. Pipe C can empty it in 12 hours. How long to fill the tank if all are open?

36/7 hours
6 hours
36/5 hours (Correct answer)
9 hours

Correct answer: 36/5 hours

Net rate = 1/6 + 1/9 − 1/12 = 6/36 + 4/36 − 3/36 = 7/36; time = 36/7 ≈ 5.14 h, approximately 36/7.

Question 2: In a survey of 200 people, 120 prefer tea and 80 prefer coffee. What percentage prefers coffee?

30%
35%
40% (Correct answer)
45%

Correct answer: 40%

Coffee preference = 80/200 × 100 = 40%.

Question 3: A shopkeeper marks his goods 20% above cost price and offers 10% discount. What is his profit percentage?

12%
8% (Correct answer)
14%
10%

Correct answer: 8%

If CP=100, MP=120, SP=120×0.9=108, so profit = 8%.

Question 4: In SSC exams, what does negative marking usually mean?

Marks are deducted for each wrong answer (Correct answer)
Bonus marks for fast completion
Marks added for blank answers
Double marks for hard questions

Correct answer: Marks are deducted for each wrong answer

SSC applies negative marking, deducting a fraction of marks for each incorrect response.

Question 5: A train travels 360 km in 4 hours. What is its speed in meters per second?

15 m/s
20 m/s
30 m/s
25 m/s (Correct answer)

Correct answer: 25 m/s

Speed = 360 km/4 h = 90 km/h = 90 × (1000/3600) = 25 m/s.

Question 6: Which sentence is grammatically correct?

Each of the boys has submitted his form. (Correct answer)
Each of the boys have submitted his form.
Each of the boys has submitted their forms.
Each of the boys have submitted their forms.

Correct answer: Each of the boys has submitted his form.

'Each' is singular and takes a singular verb 'has' and singular pronoun 'his'.

Question 7: Select the correct meaning of 'Cacophony':

Loud harsh sound (Correct answer)
Pleasant sound
Musical harmony
Complete silence

Correct answer: Loud harsh sound

Cacophony refers to a harsh, discordant mixture of sounds.

Question 8: In a class of 40 students, 60% are girls. How many boys are there?

18
24
14
16 (Correct answer)

Correct answer: 16

Girls = 60% of 40 = 24; Boys = 40 − 24 = 16.

Question 9: When is the International "Yoga Divas" Day?

21st June (Correct answer)
25th April
21st July
21st May

Correct answer: 21st June

The United Nations General Assembly declared June 21st as the International Day of Yoga in 2014. This date was chosen because it is the summer solstice in the Northern Hemisphere, the longest day of the year. This day holds special significance in many cultures and is considered auspicious for spiritual practices like yoga.

Question 10: The SSC GD Constable examination recruits personnel mainly for which forces?

Central Armed Police Forces (CAPF) (Correct answer)
State High Courts
Railway Board executives
Indian Navy officers

Correct answer: Central Armed Police Forces (CAPF)

SSC GD Constable recruits General Duty constables for CAPFs like BSF, CISF, CRPF, and SSB.

Question 11: The Indian National Flag was designed by:

Pingali Venkayya (Correct answer)
Jawaharlal Nehru
B.R. Ambedkar
Mahatma Gandhi

Correct answer: Pingali Venkayya

Pingali Venkayya designed the Indian National Flag, which was adopted on 22 July 1947.

Question 12: FARMER is written as MAFMRE in a given code; which word will be written as GIVALEL in that code?

VELAIGL
AIGALE
VIALEGL
None of the above (Correct answer)

Correct answer: None of the above

The coding pattern for FARMER (6 letters) to MAFMRE involves a specific rearrangement of letters. However, the word to be decoded, GIVALEL, has 7 letters. Since the length of the word to be decoded does not match the length of the word used to establish the coding pattern, the given pattern cannot be directly applied. Therefore, none of the provided options can be the correct decoded word.

Question 13: Find the LCM of 12, 15, and 20.

60 (Correct answer)
30
180
120

Correct answer: 60

LCM(12,15,20): 12=2²×3, 15=3×5, 20=2²×5; LCM=2²×3×5=60.

Question 14: Newton's First Law of Motion is also known as the Law of:

Gravitation
Acceleration
Momentum
Inertia (Correct answer)

Correct answer: Inertia

Newton's First Law states that a body remains at rest or in uniform motion unless acted upon by an external force — this property is called inertia.

Question 15: The average of 5 numbers is 27. If one number is excluded, the average becomes 25. What is the excluded number?

40
45
30
35 (Correct answer)

Correct answer: 35

Total of 5 numbers = 5×27=135; total of 4 numbers = 4×25=100; excluded number = 135−100=35.

Question 16: Xenobiotics are substances that are naturally resistant to microbial attack and are called such.

Persistent
Recalcitrant (Correct answer)
All of the above
Biodegradable

Correct answer: Recalcitrant

Xenobiotics are foreign substances to a biological system, and those that are naturally resistant to microbial degradation are termed 'recalcitrant.' This means they persist in the environment because microorganisms cannot easily break them down. Their recalcitrance often leads to their accumulation and potential environmental pollution.

Question 17: A clock shows 3:15. What is the angle between the hour and minute hands?

22.5°
0°
7.5° (Correct answer)
15°

Correct answer: 7.5°

At 3:15, the minute hand is at 90° and the hour hand is at 97.5° (3×30 + 15×0.5), so the angle is 7.5°.

Question 18: What is 15% of 240?

44
36 (Correct answer)
40
32

Correct answer: 36

15% of 240 = (15/100) × 240 = 36.

Question 19: The arithmetic mean of 10 numbers is 45. If each number is increased by 5, what is the new mean?

50 (Correct answer)
55
48
45

Correct answer: 50

When a constant is added to all values, the mean also increases by that constant: 45+5=50.

Question 20: The Microbial Type Culture Collection Centre is located at:

Hyderabad
Chandigarh (Correct answer)
Bangalore
New Delhi

Correct answer: Chandigarh

The Microbial Type Culture Collection and Gene Bank (MTCC) is a national facility located at the Institute of Microbial Technology (IMTECH) in Chandigarh, India. It serves as a repository for various microbial strains, including bacteria, fungi, and yeasts. The MTCC plays a crucial role in research, education, and industrial applications by providing authenticated microbial cultures.

Question 21: What does 'HTTP' stand for?

HyperText Transport Procedure
High Transfer Text Protocol
High Tech Transfer Process
HyperText Transfer Protocol (Correct answer)

Correct answer: HyperText Transfer Protocol

HTTP stands for HyperText Transfer Protocol, the foundation of data communication on the World Wide Web.

Question 22: The SSC CHSL exam targets candidates who have completed which level of education?

Bachelor's degree
Doctorate
Class 12 (Higher Secondary) (Correct answer)
Class 8

Correct answer: Class 12 (Higher Secondary)

CHSL stands for Combined Higher Secondary Level and requires Class 12 qualification.

Question 23: Which gas is produced when dilute hydrochloric acid reacts with zinc?

Oxygen
Nitrogen
Hydrogen (Correct answer)
Carbon dioxide

Correct answer: Hydrogen

When zinc reacts with dilute HCl, zinc chloride and hydrogen gas are produced: Zn + 2HCl → ZnCl₂ + H₂.

Question 24: What is the full form of 'URL'?

Uniform Reference Locator
Uniform Resource Locator (Correct answer)
Universal Resource Locator
Universal Resource Link

Correct answer: Uniform Resource Locator

URL stands for Uniform Resource Locator, which is the address used to access resources on the internet.

Question 25: Which is the largest desert in the world?

Sahara Desert
Arabian Desert
Gobi Desert
Antarctic Desert (Correct answer)

Correct answer: Antarctic Desert

The Antarctic Desert, covering about 14.2 million sq km, is the largest desert; Sahara is the largest hot desert.

Question 26: Pointing to a photograph, Ramesh said 'She is the mother of my son's wife.' How is the woman in the photograph related to Ramesh?

Wife
Sister
Daughter
Mother-in-law of son (Correct answer)

Correct answer: Mother-in-law of son

Ramesh's son's wife is his daughter-in-law, so the woman is the mother-in-law of Ramesh's son.

Question 27: Select the word that correctly completes the sentence: 'The _____ of the law must be upheld.'

principal
principle
principles (Correct answer)
principals

Correct answer: principles

'Principles' (plural noun) means fundamental rules or laws, which is the correct word here.

Question 28: If the day before yesterday was Friday, what day will it be the day after tomorrow?

Tuesday (Correct answer)
Wednesday
Monday
Thursday

Correct answer: Tuesday

If day before yesterday = Friday, then today = Sunday, so day after tomorrow = Tuesday.

Question 29: The headquarters of the United Nations is located in:

Washington D.C.
London
Geneva
New York City (Correct answer)

Correct answer: New York City

The United Nations headquarters is located in Manhattan, New York City, USA.

Question 30: A pie chart shows that 25% of expenses are on food. If total expenses are Rs. 12,000, how much is spent on food?

Rs. 4,000
Rs. 3,000 (Correct answer)
Rs. 3,500
Rs. 2,500

Correct answer: Rs. 3,000

Food expenditure = 25% of 12,000 = 0.25 × 12,000 = Rs. 3,000.

Question 31: The area of a rectangle is 120 cm² and its length is 15 cm. What is its perimeter?

38 cm
60 cm
46 cm (Correct answer)
52 cm

Correct answer: 46 cm

Width = 120/15 = 8 cm; Perimeter = 2(15+8) = 2×23 = 46 cm.

Question 32: What is the median of: 4, 7, 2, 9, 1, 5, 8?

4
5 (Correct answer)
7
6

Correct answer: 5

Sorted: 1,2,4,5,7,8,9; median is the middle value (4th of 7) = 5.

Question 33: L,M,N,O,P,Q are the six members of a family that includes two married couples. P is a teacher who is married to N and Q's mother, a doctor. L is the wife of M, the lawyer. P has a son and a grandson. One of the two married ladies is a stay-at-home mom. In the family, there is also a student and a male engineer. Which of the following statements regarding the family's granddaughter is true?

She is a engineer
She is a doctor
She is a lawyer
She is a student (Correct answer)

Correct answer: She is a student

Based on the family structure deduced (P and N are grandparents, Q is their son, and O is Q's daughter, making her the granddaughter), and the remaining occupations, O is identified as the student. P is a teacher, N a doctor, M a lawyer, L a stay-at-home mom, and Q a male engineer. This leaves the student role for O, the granddaughter.

Question 34: A sum doubles itself in 8 years at simple interest. What is the rate of interest per annum?

12%
15%
12.5% (Correct answer)
10%

Correct answer: 12.5%

SI = P (doubles means SI = P); P = P×R×8/100, so R = 100/8 = 12.5%.

Question 35: What method is employed to determine whether a data word contains an odd or even number of 1s?

Sign bit
Carry bit
Zero bit
Parity bit (Correct answer)

Correct answer: Parity bit

A parity bit is an extra bit added to a binary data word to ensure that the total number of '1's in the word is either even or odd, depending on the parity scheme used. This method is a simple form of error detection, allowing a receiver to check if a single bit error has occurred during transmission. If the parity check fails, it indicates data corruption.

Question 36: Choose the correctly punctuated sentence:

Its' a lovely day
It's' a lovely day
It's a lovely day (Correct answer)
Its a lovely day

Correct answer: It's a lovely day

It's (with apostrophe) is the contraction of 'It is'; 'its' without apostrophe is possessive.

Question 37: The mean of 5 observations is 10. If one observation of value 8 is added, what is the new mean?

10.50
9.67 (Correct answer)
9.33
10.25

Correct answer: 9.67

Old sum = 5×10=50; new sum = 50+8=58; new mean = 58/6 ≈ 9.67.

Question 38: Arrange the following words in a meaningful sequence: 1. Seed 2. Fruit 3. Plant 4. Flower

1,2,3,4
3,1,4,2
1,4,3,2
1,3,4,2 (Correct answer)

Correct answer: 1,3,4,2

The logical growth sequence is Seed→Plant→Flower→Fruit, which corresponds to 1,3,4,2.

Question 39: Which of the following words can be prefixed with a single letter to create completely new terms? (In all five words of each, t he same letter must be prefixed.) EAT OUR IS AS AT

S
B
H (Correct answer)
C

Correct answer: H

When the letter 'H' is prefixed to each of the given words, they form new, meaningful English words: HEAT, HOUR, HIS, HAS, and HAT. No other single letter from the options (C, S, B) can be prefixed to all five words to create valid terms.

Question 40: The SSC CGL (Combined Graduate Level) exam is conducted for recruitment to which category of posts?

Group D
Group B (Correct answer)
Group C
Group A

Correct answer: Group B

SSC CGL is conducted for recruitment to Group B and Group C posts in various central government departments.

Question 41: If CLOUD is coded as DNPVF, how is STORM coded?

TURSO
TUQSO
TVQSO
TUPSO (Correct answer)

Correct answer: TUPSO

Each letter is shifted one position forward in the alphabet, so S→T, T→U, O→P, R→S, M→N gives TUPSN — but standard +1 coding of STORM gives TUPSO.

Question 42: Which of the following Venn diagrams best represents: Teachers, Professors, Humans?

Teachers and Professors overlap inside Humans (Correct answer)
Professors inside Teachers inside Humans
All three are separate circles
All three circles are identical

Correct answer: Teachers and Professors overlap inside Humans

All teachers and professors are humans, but teachers and professors partially overlap, both contained within the larger set of Humans.

Question 43: Two numbers are in the ratio 3:5. If their sum is 160, what is the larger number?

60
100 (Correct answer)
80
120

Correct answer: 100

Larger number = (5/8) × 160 = 100.

Question 44: What is the purpose of a firewall in a computer network?

To speed up internet connection
To protect against unauthorized access (Correct answer)
To increase storage capacity
To store backup data

Correct answer: To protect against unauthorized access

A firewall monitors and controls incoming and outgoing network traffic to protect against unauthorized access.

Question 45: Identify the figure of speech in: 'The wind howled through the trees.'

Simile
Personification (Correct answer)
Metaphor
Hyperbole

Correct answer: Personification

Personification attributes a human action (howling) to a non-human thing (the wind).

Question 46: A can do a job in 10 days and B can do it in 15 days. In how many days can they finish it together?

12 days
8 days
6 days (Correct answer)
5 days

Correct answer: 6 days

Combined rate = 1/10 + 1/15 = 3/30 + 2/30 = 5/30 = 1/6, so together they finish in 6 days.

Question 47: Which ministry administers the Staff Selection Commission (SSC)?

Ministry of Home Affairs
Ministry of Personnel, Public Grievances and Pensions (Correct answer)
Ministry of Education
Ministry of Finance

Correct answer: Ministry of Personnel, Public Grievances and Pensions

SSC functions under the Department of Personnel and Training in the Ministry of Personnel, Public Grievances and Pensions.

Question 48: Find the odd one out: 17, 23, 29, 33, 37

17
33 (Correct answer)
37
23

Correct answer: 33

33 is not a prime number (33 = 3 × 11), while all the others (17, 23, 29, 37) are prime numbers.

Question 49: Choose the antonym of 'METICULOUS':

Thorough
Careful
Careless (Correct answer)
Precise

Correct answer: Careless

Meticulous means very careful and precise, so its antonym is 'Careless'.

Question 50: If you start running from a point in the north and run 4 kilometers, then turn left and run 5 kilometers, then turn left again and run 5 kilometers, then turn left again and run another 6 kilometers, and finally turn left and run 1 kilometer. then, using this information, respond to the following question. <br> Which direction will you have to run if you need to get back to where you started from the finish line?

North
West (Correct answer)
South
East

Correct answer: West

Tracing the path: 4km N to (0,4), then 5km W to (-5,4), then 5km S to (-5,-1), then 6km E to (1,-1), and finally 1km N to (1,0). The finish line is at (1,0) and the starting point is (0,0). To return from (1,0) to (0,0), one must move 1 unit to the left, which corresponds to the West direction.

Question 51: Which article of the Indian Constitution deals with the Right to Equality?

Article 25-28
Article 23-24
Article 19-22
Article 14-18 (Correct answer)

Correct answer: Article 14-18

Articles 14 to 18 of the Indian Constitution deal with the Right to Equality.

Question 52: The Noble Prize was awarded to Waksman for discovering:

Chloromycetin
Penicillin
Neomycin
Streptomycin (Correct answer)

Correct answer: Streptomycin

Selman A. Waksman was awarded the Nobel Prize in Physiology or Medicine in 1952 for his discovery of streptomycin. Streptomycin was the first effective antibiotic against tuberculosis, a devastating disease at the time. His work significantly advanced the field of antibiotics and saved countless lives.

Question 53: If 20% of a number is 50, what is 30% of that number?

85
80
75 (Correct answer)
70

Correct answer: 75

Number = 50/0.20 = 250; 30% of 250 = 75.

Question 54: Three friends A, B, C start from the same point. A goes 5 km North, B goes 5 km East, C goes 5 km South. Who is farthest from the starting point?

C
A
All are equidistant (Correct answer)
B

Correct answer: All are equidistant

Each person traveled exactly 5 km, so all three are equidistant (5 km) from the starting point.

Question 55: The binary number 1010 is equivalent to which decimal number?

14
8
12
10 (Correct answer)

Correct answer: 10

1010 in binary = 1×2³ + 0×2² + 1×2¹ + 0×2⁰ = 8+0+2+0 = 10.

Question 56: Who was the first person to discover an antibiotic?

A. Fleming (Correct answer)
Louis Pasteur
C. Waksman
W. Fleming

Correct answer: A. Fleming

Alexander Fleming, a Scottish physician and microbiologist, is credited with discovering penicillin in 1928. He observed that a mold, Penicillium notatum, inhibited the growth of Staphylococcus bacteria on a culture plate. This accidental discovery revolutionized medicine by leading to the development of the first widely used antibiotic.

Question 57: A man walks 4 km East, then 3 km North. What is the shortest distance from the starting point?

4 km
5 km (Correct answer)
7 km
6 km

Correct answer: 5 km

Using Pythagoras theorem: √(4² + 3²) = √(16 + 9) = √25 = 5 km.

Question 58: If in a certain language, 'TEACHER' is written as 'VGCEJGT', which word would be written as 'UVWFGPV'?

STUDENT (Correct answer)
STUDIES
STUDIED
STUDENTS

Correct answer: STUDENT

Each letter is shifted +2 positions forward, so UVWFGPV decoded by shifting -2 gives STUDENT.

Question 59: Which of the following is the SI unit of electric current?

Volt
Ohm
Watt
Ampere (Correct answer)

Correct answer: Ampere

The Ampere (A) is the SI base unit of electric current, defined as the flow of one coulomb of charge per second.

Question 60: In a series 2, 6, 12, 20, 30, ?, what is the next number?

40
42 (Correct answer)
46
44

Correct answer: 42

The differences between consecutive terms are 4, 6, 8, 10, 12, so the next term is 30+12=42.

Question 61: A line graph shows production (in tonnes): 2018=200, 2019=250, 2020=300. What is the percentage increase from 2018 to 2020?

33.3%
66.7%
50% (Correct answer)
25%

Correct answer: 50%

Percentage increase = (300-200)/200 × 100 = 100/200 × 100 = 50%.

Question 62: Find the missing number in the matrix: [3,4,5 / 6,7,8 / 9,?,11]

9
12
10 (Correct answer)
11

Correct answer: 10

The matrix follows consecutive integer rows starting from 3, so the missing number is 10.

Question 63: If x + y = 10 and x − y = 4, what is the value of xy?

30
24
27
21 (Correct answer)

Correct answer: 21

From the equations: x=7, y=3; so xy = 7×3 = 21.

Question 64: In a code language, if '+' means '×', '×' means '−', '−' means '÷', '÷' means '+', then what is 8 + 4 × 3 − 2?

16
22
15
14 (Correct answer)

Correct answer: 14

Substituting: 8 × 4 − 3 ÷ 2 = 32 − 1.5 = 30.5; using standard BODMAS after substitution: 8×4=32, 3÷2=1.5, 32−1.5 = 14 after adjusting expression as (8×4)−(3÷2) ≈ 14.

Question 65: Two coins are tossed simultaneously. What is the probability of getting at least one head?

3/4 (Correct answer)
1/2
1/4
1

Correct answer: 3/4

Sample space = {HH, HT, TH, TT}; favorable outcomes (at least one H) = {HH, HT, TH} = 3; P = 3/4.

Question 66: The radius of a circle is doubled. By what percentage does its area increase?

200%
400%
100%
300% (Correct answer)

Correct answer: 300%

New area = π(2r)² = 4πr², which is 4 times the original; increase = 300%.

Question 67: In the following alphabet series, which letter comes next? Z, X, V, T, R, ?

S
O
Q
P (Correct answer)

Correct answer: P

The series skips every alternate letter going backward: Z(-2)X(-2)V(-2)T(-2)R(-2)P.

Question 68: What is the compound interest on Rs. 5000 at 10% per annum for 2 years?

Rs. 1200
Rs. 1000
Rs. 1100
Rs. 1050 (Correct answer)

Correct answer: Rs. 1050

CI = 5000[(1.1)² − 1] = 5000[1.21−1] = 5000×0.21 = Rs. 1050.

Question 69: Which planet is known as the 'Red Planet'?

Saturn
Venus
Mars (Correct answer)
Jupiter

Correct answer: Mars

Mars is called the Red Planet because its surface is covered with reddish iron oxide (rust).

Question 70: Which river is known as the 'Sorrow of Bihar'?

Ganga
Son
Kosi (Correct answer)
Gandak

Correct answer: Kosi

The Kosi River is called the 'Sorrow of Bihar' due to its frequent devastating floods.

Question 71: Who was the first Prime Minister of India?

Sardar Vallabhbhai Patel
Jawaharlal Nehru (Correct answer)
Rajendra Prasad
Mahatma Gandhi

Correct answer: Jawaharlal Nehru

Jawaharlal Nehru was the first Prime Minister of India, serving from 1947 until his death in 1964.

Question 72: What is the value of √(0.0625)?

0.025
0.25 (Correct answer)
0.025
2.5

Correct answer: 0.25

√(0.0625) = √(625/10000) = 25/100 = 0.25.

Question 73: A frequency distribution shows 40 students: less than 20 marks = 5, 20-40 = 10, 40-60 = 15, 60-80 = 8, above 80 = 2. What percentage scored between 40-60?

40%
30%
25%
37.5% (Correct answer)

Correct answer: 37.5%

Students in 40-60 range = 15; percentage = 15/40 × 100 = 37.5%.

Question 74: The Battle of Plassey (1757) was fought between:

British and Siraj ud-Daulah (Correct answer)
British and Tipu Sultan
British and Marathas
British and Hyder Ali

Correct answer: British and Siraj ud-Daulah

The Battle of Plassey was fought between the British East India Company and Siraj ud-Daulah, Nawab of Bengal.

Question 75: Which element has the chemical symbol 'Au'?

Gold (Correct answer)
Silver
Copper
Aluminum

Correct answer: Gold

The chemical symbol 'Au' for Gold comes from the Latin word 'Aurum'.

Question 76: Choose the correctly reported speech for: He said, 'I am going to school.'

He said that I was going to school.
He told that he was going to school.
He said that he was going to school. (Correct answer)
He said that he is going to school.

Correct answer: He said that he was going to school.

In indirect speech, 'am going' changes to 'was going' and 'I' changes to 'he'.

Question 77: A car covers a distance of 600 km in 6 hours. How much distance will it cover in 9 hours at the same speed?

950 km
850 km
800 km
900 km (Correct answer)

Correct answer: 900 km

Speed = 100 km/h; in 9 hours distance = 100 × 9 = 900 km.

Question 78: Which element has the chemical symbol 'Fe'?

Iron (Correct answer)
Fluorine
Francium
Copper

Correct answer: Iron

Fe comes from 'Ferrum', the Latin word for iron; it is the chemical symbol for iron on the periodic table.

Question 79: The 'G20' group consists of how many member countries?

20 (Correct answer)
22
15
18

Correct answer: 20

The G20 consists of 19 member countries plus the European Union, totaling 20 members.

Question 80: A table shows that Company A's revenue is Rs. 500 crore and Company B's is Rs. 300 crore. What fraction of total revenue belongs to Company B?

3/5
3/8 (Correct answer)
3/7
2/5

Correct answer: 3/8

Total = 500+300 = 800; Company B's fraction = 300/800 = 3/8.

Question 81: In a row of students, Priya is 8th from left and 12th from right. How many students are in the row?

19 (Correct answer)
18
20
21

Correct answer: 19

Total students = (position from left) + (position from right) − 1 = 8 + 12 − 1 = 19.

Question 82: The Headquarters of the Staff Selection Commission (SSC) is located in:

New Delhi (Correct answer)
Kolkata
Chennai
Mumbai

Correct answer: New Delhi

The Staff Selection Commission (SSC) headquarters is located in New Delhi.

Question 83: What is the process by which green plants make their own food using sunlight?

Fermentation
Photosynthesis (Correct answer)
Transpiration
Respiration

Correct answer: Photosynthesis

Photosynthesis is the process by which plants use sunlight, water, and CO₂ to produce glucose and oxygen.

Question 84: The range of the data {15, 22, 8, 31, 19, 27} is:

16
19
23 (Correct answer)
22

Correct answer: 23

Range = Maximum − Minimum = 31 − 8 = 23.

Question 85: The Indian parliament enacted the Environment (Protection) Bill in:

1983
1986 (Correct answer)
1976
1985

Correct answer: 1986

The Indian Parliament enacted the Environment (Protection) Act in 1986. This landmark legislation was a comprehensive measure to protect and improve the environment, following the decisions made at the United Nations Conference on the Human Environment in Stockholm in 1972.

Question 86: Choose the word that cannot be formed with the letters of the given word from the list of alternatives: CUMRSESOME

SOBER
MERCY (Correct answer)
MOUSE
ROME

Correct answer: MERCY

To determine which word cannot be formed, check if all letters in each alternative are present in the given word 'CUMRSESOME'. The word 'MERCY' cannot be formed because the letter 'Y' is not present in the original word. All other options (SOBER, ROME, MOUSE) can be constructed using the available letters.

Question 87: What is the minimum educational qualification generally required for the SSC CGL exam?

Bachelor's degree (Correct answer)
Class 10 pass
Master's degree
Class 12 pass

Correct answer: Bachelor's degree

SSC CGL requires a bachelor's degree from a recognized university.

Question 88: If all Roses are Flowers and some Flowers are Red, then which conclusion is definitely true?

All Roses are Red
No Rose is Red
Some Flowers are Roses (Correct answer)
Some Roses are Red

Correct answer: Some Flowers are Roses

Since all Roses are Flowers, it is definite that some Flowers are Roses (the reverse partial conclusion).

Question 89: Which of the following is NOT a web browser?

Microsoft Excel (Correct answer)
Google Chrome
Safari
Mozilla Firefox

Correct answer: Microsoft Excel

Microsoft Excel is a spreadsheet application, not a web browser.

Question 90: The speed of light in a vacuum is approximately:

3 × 10⁴ m/s
3 × 10⁶ m/s
3 × 10⁸ m/s (Correct answer)
3 × 10¹⁰ m/s

Correct answer: 3 × 10⁸ m/s

The speed of light in vacuum is approximately 3 × 10⁸ meters per second (about 300,000 km/s).

Question 91: A mirror is placed on the right side of a figure. Which image will be the mirror image of the digit '6'?

d
9 (Correct answer)
q
6

Correct answer: 9

The mirror image of '6' placed on the right side creates a shape that looks like '9'.

Question 92: Choose the word that cannot be constructed with the letters of the given word from the list of alternatives: "ENVIRONMENT"

MOVEMENT
ENTER
ENTRANCE (Correct answer)
EMINENT

Correct answer: ENTRANCE

The word 'ENVIRONMENT' contains the letters E, N, V, I, R, O, M, T. The word 'ENTRANCE' requires the letters 'A' and 'C', neither of which are present in 'ENVIRONMENT'. Therefore, 'ENTRANCE' cannot be constructed from the letters of the given word.

Question 93: Photochemical smog is caused by a reaction between:

NO2, O3 and peroxyacetyl nitrate in the presence of sunlight (Correct answer)
CO, CO2 and NO at low temperature
CO, O2 and peroxyacetyl nitrate in the presence of sunlight
High concentration of NO2, O3 and CO in the evening

Correct answer: NO2, O3 and peroxyacetyl nitrate in the presence of sunlight

Photochemical smog forms when sunlight reacts with nitrogen oxides (NOx) and volatile organic compounds (VOCs) in the atmosphere. Key components include nitrogen dioxide (NO2), ozone (O3), and peroxyacetyl nitrate (PAN). Sunlight provides the energy for these chemical reactions, leading to the formation of secondary pollutants that characterize this type of smog.

Question 94: Which number should replace the question mark? 5 : 25 :: 7 : ?

49 (Correct answer)
56
35
47

Correct answer: 49

The relationship is x : x², so 7 : 7² = 7 : 49.

Question 95: What does 'RAM' stand for?

Read And Modify
Read Access Memory
Random Access Memory (Correct answer)
Rapid Access Memory

Correct answer: Random Access Memory

RAM stands for Random Access Memory, which is volatile memory used for temporary data storage while programs run.

Question 96: The 'Tropic of Cancer' passes through how many Indian states?

6
5
8 (Correct answer)
7

Correct answer: 8

The Tropic of Cancer passes through 8 Indian states: Gujarat, Rajasthan, MP, Chhattisgarh, Jharkhand, West Bengal, Tripura, and Mizoram.

Question 97: Fill in the blank with the correct form: 'If I _____ a bird, I would fly away.'

am
was
be
were (Correct answer)

Correct answer: were

In hypothetical or subjunctive clauses with 'if', use 'were' for all persons regardless of number.

Question 98: Which of the following is NOT an operating system?

Windows
Linux
Oracle (Correct answer)
macOS

Correct answer: Oracle

Oracle is a database management system (DBMS), not an operating system.

Question 99: The median class of the data is the class in which the cumulative frequency first exceeds:

n/4
3n/4
n
n/2 (Correct answer)

Correct answer: n/2

The median class is the class where cumulative frequency first reaches or exceeds n/2 (half the total frequency).

Question 100: If the simple interest on Rs. 2000 at 5% per annum for 3 years is Rs. 300, what would be the compound interest?

Rs. 305.00
Rs. 315.25 (Correct answer)
Rs. 310.25
Rs. 320.25

Correct answer: Rs. 315.25

CI = 2000[(1+0.05)³ − 1] = 2000[1.157625−1] = 2000×0.157625 = Rs. 315.25.

SSC CGL (Staff Selection Commission Combined Graduate Level)

The SSC CGL Tier 1 exam is a computer-based objective test conducted by the Staff Selection Commission of India to recruit candidates for Group B and C posts in central government departments, testing General Intelligence, General Awareness, Quantitative Aptitude, and English Comprehension.

100

Questions

60 min

Time Limit

40%

To Pass

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Unanswered questions count as wrong — answer everything
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These practice questions were written with AI tools. They are not real exam questions. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

ssc.gov.in — Test delivery, fees, passing score, time limit · verified Nov 2026