You'll Never Score 5/5 In This Difficult Math-IQ Test

We gave this test to 100 educated Americans and nobody scored 5/5. Can you?

Terry Stein
Created By Terry Stein
On Feb 20, 2019
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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?