Cognitive Reflection Test Verbal and Logic Puzzles 2 — Questions and Answers
Question 1: If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
- 5 minutes (Correct answer)
- 100 minutes
- 20 minutes
- 500 minutes
Correct answer: 5 minutes
Each machine makes one widget in 5 minutes, so 100 machines make 100 widgets in the same 5 minutes.
Question 2: A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?
- $0.05 (Correct answer)
- $0.10
- $0.01
- $1.00
Correct answer: $0.05
The ball is $0.05 and the bat is $1.05, a difference of exactly $1.00.
Question 3: A lily pad patch doubles in size each day and covers the whole lake on day 48. On what day was the lake half covered?
- Day 47 (Correct answer)
- Day 24
- Day 46
- Day 23
Correct answer: Day 47
Since it doubles daily, the day before full coverage it was exactly half covered.
Question 4: A farmer has 17 sheep and all but 9 die. How many sheep are left?
- 9 (Correct answer)
- 8
- 17
- 26
Correct answer: 9
"All but 9" means 9 sheep survive.
Question 5: If you overtake the person in second place in a race, what position are you in?
- Second (Correct answer)
- First
- Third
- It depends
Correct answer: Second
Passing the runner in second place means you take over their spot, not first.
Question 6: Some months have 31 days, some have 30. How many months have 28 days?
- All 12 (Correct answer)
- 1
- 4
- 7
Correct answer: All 12
Every month contains at least 28 days.
Question 7: A doctor gives you 3 pills and tells you to take one every half hour. How long do the pills last?
- 1 hour (Correct answer)
- 1.5 hours
- 2 hours
- 30 minutes
Correct answer: 1 hour
Take one now, one at 30 minutes, and one at 60 minutes, so they span one hour.
If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?