Advanced Math practice question

Answer: 6

240/30 = 8 = 2³, so three doublings, or 6 days.

Common wrong answers

If you answered 3

3 is the number of doublings, not days.

If you answered 8

8 is the growth factor.

If you answered 16

16 uses doubling every day and reaches 240 too late by counting wrongly; the answer is 6.

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