Cognizant Cognizant Problem Solving and Logical Reasoning 2 — Questions and Answers
Question 1: In a row of 40 students, Priya is 15th from the left. What is her position from the right?
- 24th
- 25th
- 26th (Correct answer)
- 27th
Correct answer: 26th
Position from right = (40 − 15 + 1) = 26th.
Question 2: Pointing to a photograph, Ram says 'She is the daughter of my grandfather's only son.' How is the person related to Ram?
- Sister (Correct answer)
- Cousin
- Niece
- Aunt
Correct answer: Sister
Ram's grandfather's only son is Ram's father, and that person's daughter is Ram's sister.
Question 3: What is 15% of 20% of 500?
- 10
- 12
- 15 (Correct answer)
- 20
Correct answer: 15
20% of 500 = 100; 15% of 100 = 15.
Question 4: If 6 men can complete a work in 10 days, how many men are needed to complete it in 4 days?
- 12
- 14
- 15 (Correct answer)
- 18
Correct answer: 15
Men × Days = constant: 6 × 10 = 60; men needed = 60 / 4 = 15.
Question 5: Choose the odd one out: 17, 19, 23, 27, 29
- 17
- 19
- 27 (Correct answer)
- 29
Correct answer: 27
27 = 3³ is not a prime number, while 17, 19, 23, and 29 are all primes.
Question 6: A shopkeeper sells an item at $80 at a 20% profit. What was the cost price?
- $60
- $64
- $66.67 (Correct answer)
- $72
Correct answer: $66.67
Cost price = 80 / 1.20 = $66.67.
In a row of 40 students, Priya is 15th from the left.
What is her position from the right?