16Hit1600
Advanced MathVery hardHalvings needed to reach a level

Advanced Math practice question

A quantity starts at 64 and halves every 5 minutes. After how many minutes will it first be 8?

Answer: 15

64 → 32 → 16 → 8 is three halvings, or 15 minutes.

Common wrong answers

If you answered 3
3 is the number of halvings.
If you answered 8
8 is the target quantity.
If you answered 40
40 is 5 × 8.

More Advanced Math questions

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