Cognitive Reflection Test Classic Numerical Reasoning Problems 3

Question 1

In a race you overtake the person in 2nd place. What position are you now in?

Accepted Answer

2nd

Answer

Passing the runner in 2nd place means you take their spot, so you are now 2nd.

Question 2

A notebook and pen cost $1.50 together. The notebook costs $1.00 more than the pen. What is the pen's price?

Accepted Answer

$0.25

Answer

The pen is $0.25 and the notebook is $1.25, giving the $1.00 gap and $1.50 total.

Question 3

If 8 printers print 8 pages in 8 seconds, how long for 24 printers to print 24 pages?

Accepted Answer

8 seconds

Answer

Each printer makes one page in 8 seconds, so scaling both up keeps the time at 8 seconds.

Question 4

Mold on bread doubles daily and covers a slice fully in 20 days. On what day is it a quarter covered?

Accepted Answer

18 days

Answer

Half coverage is day 19 and a quarter is one doubling earlier, on day 18.

Question 5

A hat and scarf cost $1.30 together. The hat costs $1.00 more than the scarf. What does the scarf cost?

Accepted Answer

$0.15

Answer

The scarf is $0.15 and the hat is $1.15, matching the $1.00 difference and $1.30 total.

Cognitive Reflection Test Practice Test