Advanced MathEasy–MediumBacteria tripling every day
Advanced Math practice question
A colony of 2 bacteria triples in number every day. How many bacteria will there be after 3 days?
Answer: 54
2 × 3³ = 2 × 27 = 54.
Common wrong answers
- If you answered 18
- 18 is 2 × 3 × 3, only two triplings.
- If you answered 24
- 24 is 2 × 3 × 4, multiplying by the number of days.
- If you answered 216
- 216 is 6³, combining the 2 and 3 before raising.
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