Cognitive Reflection Test Basic 2

Question 1

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?

Accepted Answer

$0.05

Answer

$0.10

Answer

$1.00

Answer

$0.15

Question 2

If 5 machines take 5 minutes to make 5 widgets, how long would 100 machines take to make 100 widgets?

Accepted Answer

5 minutes

Answer

100 minutes

Answer

20 minutes

Answer

500 minutes

Question 3

In a lake, a patch of lily pads doubles in size every day. If it takes 48 days to cover the whole lake, how long to cover half the lake?

Accepted Answer

47 days

Answer

24 days

Answer

46 days

Answer

12 days

Question 4

What is the primary cognitive ability the Cognitive Reflection Test measures?

Accepted Answer

Suppressing an intuitive wrong answer to find the reflective correct one

Answer

Raw arithmetic speed

Answer

Vocabulary size

Answer

Short-term memory span

Question 5

Who introduced the Cognitive Reflection Test in 2005?

Accepted Answer

Shane Frederick

Answer

Daniel Kahneman

Answer

Amos Tversky

Answer

Keith Stanovich

Question 6

If John can drink one barrel of water in 6 days, and Mary in 12 days, how long to drink one barrel together?

Accepted Answer

4 days

Answer

9 days

Answer

6 days

Answer

3 days

Question 7

Jerry received both the 15th highest and the 15th lowest mark in the class. How many students are in the class?

Accepted Answer

29

Answer

30

Answer

15

Answer

31