A tyre has three punctures. The first puncture alone would have made the tyre flat in 9 minutes, the second alone would have done it in 6 minutes and all three punctures together would have made the tyre flat in 2 minutes. If air leaks out at a constant rate, how long does third puncture alone would takes to made the tyre flat ?
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Step-by-step explanation:
4.5min
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