Mathematics · Work and Time
A tire has two punctures. The first puncture alone would make the tire flat in 15 minutes and the second puncture alone would make it flat in 9 minutes. If air leaks out at a constant rate, how long does it take for both punctures together to make the tire flat?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14.625 minutes
- 26.625 minutes
- 37.625 minutes
- 45.625 minutes✓
Correct answer
5.625 minutes
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