Advanced Math practice question

Answer: 7

Day 1: 3, day 2: 6, day 3: 12, day 4: 24, day 5: 48, day 6: 96, day 7: 192. Day 7 is the first over 100.

Common wrong answers

If you answered 5

On day 5 it is 48.

If you answered 6

On day 6 the number is 96, not yet over 100.

If you answered 34

34 comes from 100 ÷ 3, treating growth as linear.

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