METALMICKY
Well-known member
- Jan 30, 2004
- 6,837
Thought to be the shortest IQ test in the world, the Cognitive Reflection Test consists of just three questions :
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 five machines five minutes to make five 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?
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 five machines five minutes to make five 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?