Advanced MathEasyExpression for a doubling population
Advanced Math practice question
A population of 100 bacteria doubles every hour. Which expression gives the population after h hours?
- A. 100·2ʰCorrect
- B. 100 + 2h
- C. 200h
- D. 100ʰ
Answer: A. 100·2ʰ
Doubling h times multiplies 100 by 2ʰ.
Why the other answers are wrong
- B. 100 + 2h
- This adds 2 an hour, not doubles.
- C. 200h
- This gives 0 at h = 0.
- D. 100ʰ
- This raises 100 to a power.
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