TalentLens Cognitive Ability & Aptitude 5 — Questions and Answers
Question 1: A tank fills in 12 minutes with pipe A and in 18 minutes with pipe B. How long to fill it using both pipes together?
- 6.0 minutes
- 7.2 minutes (Correct answer)
- 8.4 minutes
- 15.0 minutes
Correct answer: 7.2 minutes
Combined rate = 1/12 + 1/18 = 5/36; time = 36/5 = 7.2 minutes.
Question 2: Book : Library as Painting : ___
- Artist
- Canvas
- Gallery (Correct answer)
- Museum
Correct answer: Gallery
Books are housed and displayed in libraries; paintings are housed and displayed in galleries.
Question 3: Which of the following sequences is correctly ordered from smallest to largest?
- 1/3, 0.4, 3/8, 45%
- 1/3, 3/8, 0.4, 45% (Correct answer)
- 3/8, 1/3, 45%, 0.4
- 0.4, 1/3, 3/8, 45%
Correct answer: 1/3, 3/8, 0.4, 45%
1/3≈0.333, 3/8=0.375, 0.4=0.400, 45%=0.450 — so the correct order is 1/3, 3/8, 0.4, 45%.
Question 4: If MANGO is coded as NBNHP, how is APPLE coded?
- BQQMF (Correct answer)
- BPQMF
- AQQLF
- BQQNF
Correct answer: BQQMF
Each letter is shifted forward by 1 in the alphabet: A→B, P→Q, P→Q, L→M, E→F = BQQMF.
Question 5: A project requires 8 people working 5 days per week for 6 weeks. If only 6 people are available, how many weeks will it take?
- 6 weeks
- 7 weeks
- 8 weeks (Correct answer)
- 9 weeks
Correct answer: 8 weeks
Total person-days = 8 × 5 × 6 = 240; weeks needed = 240 / (6 × 5) = 8 weeks.
Question 6: Which statement best describes inductive reasoning?
- Deriving specific conclusions from general principles
- Forming general conclusions from specific observations (Correct answer)
- Applying mathematical formulas to real-world problems
- Eliminating impossible answers to find the correct one
Correct answer: Forming general conclusions from specific observations
Inductive reasoning moves from specific observed cases to a broader general conclusion.
Question 7: Find the missing number: 81, 27, 9, 3, ___
- 0
- 1 (Correct answer)
- 2
- 6
Correct answer: 1
Each term is divided by 3; 3 ÷ 3 = 1.
TalentLens Cognitive Ability & Aptitude 5
A tank fills in 12 minutes with pipe A and in 18 minutes with pipe B.
How long to fill it using both pipes together?