COOP COOP Logical Reasoning 2 — Questions and Answers
Question 1: Five friends stand in a line. Tom is third. Sara is behind Tom. Where is Sara?
- First or second
- Third
- Fourth or fifth (Correct answer)
- In front of Tom
Correct answer: Fourth or fifth
Behind Tom (who is third) means Sara is in position 4 or 5.
Question 2: If it takes 3 workers 6 hours to complete a job, how long will it take 6 workers to complete the same job?
- 1 hour
- 2 hours
- 3 hours (Correct answer)
- 4 hours
Correct answer: 3 hours
Doubling the workers halves the time: 6 ÷ 2 = 3 hours.
Question 3: Which statement is the opposite of 'All birds can fly'?
- Some birds can fly
- No birds can fly
- At least one bird cannot fly (Correct answer)
- All birds have wings
Correct answer: At least one bird cannot fly
The opposite of 'all' is 'at least one exception,' so at least one bird cannot fly.
Question 4: A box contains red and blue balls. There are twice as many red balls as blue balls. If there are 6 blue balls, how many balls are there in total?
- 12
- 14
- 18 (Correct answer)
- 20
Correct answer: 18
Red balls = 2 × 6 = 12; total = 12 + 6 = 18.
Question 5: Which shape has exactly 4 equal sides and 4 right angles?
- Rectangle
- Rhombus
- Square (Correct answer)
- Trapezoid
Correct answer: Square
A square has 4 equal sides and 4 right angles, unlike rectangles (sides not equal) or rhombuses (no right angles).
Question 6: Every even number greater than 2 can be written as the sum of two prime numbers. Which is true for 10?
- 10 = 3 + 7 (Correct answer)
- 10 = 4 + 6
- 10 = 1 + 9
- 10 = 2 + 8
Correct answer: 10 = 3 + 7
3 and 7 are both prime numbers, and 3 + 7 = 10.
Five friends stand in a line.
Tom is third.
Sara is behind Tom.
Where is Sara?