Basic Ability Test Basic Ability (Cognitive) 4 — Questions and Answers
Question 1: If you rearrange the letters in SILENT, you can form which other common English words?
- TINES only
- LISTEN only
- ENLIST only
- Both LISTEN and ENLIST (Correct answer)
Correct answer: Both LISTEN and ENLIST
The letters S, I, L, E, N, T can spell both LISTEN and ENLIST, so both are correct.
Question 2: A water tank is 1/3 full. After adding 120 gallons, it is 3/4 full. What is the total capacity of the tank?
- 240 gallons
- 288 gallons (Correct answer)
- 320 gallons
- 360 gallons
Correct answer: 288 gallons
The difference 3/4 − 1/3 = 5/12 equals 120 gallons, so full capacity = 120 ÷ (5/12) = 288 gallons.
Question 3: Which polygon has exactly 5 sides?
- Hexagon
- Pentagon (Correct answer)
- Octagon
- Quadrilateral
Correct answer: Pentagon
A pentagon has exactly 5 sides; hexagons have 6, octagons have 8, and quadrilaterals have 4.
Question 4: Choose the word that does NOT belong: Violin, Cello, Trumpet, Harp, Guitar.
- Violin
- Cello
- Trumpet (Correct answer)
- Harp
Correct answer: Trumpet
A trumpet is a brass wind instrument, while violin, cello, harp, and guitar are all string instruments.
Question 5: If a car depreciates in value by 20% per year and is currently worth $25,000, what will it be worth after 2 years?
- $15,000
- $16,000 (Correct answer)
- $17,500
- $20,000
Correct answer: $16,000
After year 1: $25,000 × 0.80 = $20,000; after year 2: $20,000 × 0.80 = $16,000.
Question 6: In a sequence, every third letter of the alphabet is listed starting from C: C, F, I, L, ___. What comes next?
- N
- O (Correct answer)
- M
- P
Correct answer: O
C(3), F(6), I(9), L(12), O(15) — each letter is 3 positions ahead in the alphabet.
Question 7: A task takes 6 workers 8 days to complete. How many days would it take 12 workers to complete the same task?
- 2 days
- 3 days
- 4 days (Correct answer)
- 6 days
Correct answer: 4 days
Total work = 6 × 8 = 48 worker-days; with 12 workers: 48 ÷ 12 = 4 days.
If you rearrange the letters in SILENT, you can form which other common English words?