The Cognitive Reflection Test is known as the world’s shortest IQ test, and consists of just 3 questions to tell if you’re a genius
1. A bat and a ball cost $1.10 in total. The bat costs $1 more than the ball. How much does the ball cost?
2. If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
3. In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake?
I confess that I got the last question wrong when I came across this quiz this morning, and I shouldn’t have done – a classic case of jumping to a quick conclusion without giving any proper thought to the question and answer. Shame on me.
No comments:
Post a Comment