Advanced MathEasyHeight after two halving bounces
Advanced Math practice question
A ball bounces to half its previous height each time it hits the ground. It is dropped from a height of 16 metres. How high, in metres, does it rise after its second bounce?
Answer: 4
16 → 8 after the first bounce → 4 after the second.
Common wrong answers
- If you answered 2
- 2 is after the third bounce.
- If you answered 8
- 8 is the height after the first bounce.
- If you answered 12
- 12 subtracts 2 twice instead of halving twice.
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