Mathematics · Time and Work
A machine stacks boxes. In the first minute, it stacks 15 boxes, but in the next minute, 5 boxes fall down. If the machine stacks in alternate minutes, how many minutes will it take to stack a total of 95 boxes?
- 116 minutes
- 217 minutes✓
- 318 minutes
- 419 minutes
Correct answer
17 minutes
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