Advanced MathEasyDoubling count as an exponential equation
Advanced Math practice question
A single cell splits into 2 cells every hour, so after h hours there are 2ʰ cells. After how many hours are there 16 cells?
Answer: 4
2 → 4 → 8 → 16 takes four doublings: 2⁴ = 16, so h = 4.
Common wrong answers
- If you answered 3
- 3 hours gives 2³ = 8 cells.
- If you answered 8
- 8 is 16 ÷ 2.
- If you answered 16
- 16 is the number of cells, not the hours.
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