More than 80% of participants failed to solve the world's shortest IQ test

The shortest IQ test that has appeared on the Web, consisting of only three math questions. The inventor of this test is a Massachusetts Institute of Technology professor named Shane Frederick.

More than 80% of participants failed to solve the world's shortest IQ test

The “cognitive ability test” was developed by the scientist in 2005 as part of a study, but has only now been published.

3,000 people representing different fields and educational levels were asked to take the test. Only 17% of the participants answered.

The questions are as follows:

Most people usually answer: “10 cents”, “100 minutes” and “24 days”. All of these answers are incorrect.

Which answer is correct?

The correct result is: 5 cents, 5 minutes, 47 days.