Mathematics · Time and Work
A tyre has two punctures. The first puncture alone would have made the tyre flat in 7 minutes and the second alone would have done it in 4 minutes. If air leaks out at a constant rate, how long does it take for both punctures together to make it flat?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13911 minutes
- 2393 minutes
- 32811 minutes✓
- 4132 minutes
Correct answer
2811 minutes
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