Advanced MathMediumThree doublings from 60
Advanced Math practice question
A quantity of 60 doubles every 3 hours. What is the quantity after 9 hours?
Answer: 480
Three doublings: 60 → 120 → 240 → 480.
Common wrong answers
- If you answered 180
- 180 adds 60 twice, or triples.
- If you answered 240
- 240 is after 6 hours.
- If you answered 360
- 360 multiplies 60 by 6.
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