A tyre has two punctures. The first puncture alone would have made the tyre flat in 9 minutes and the second… · ABC26GN3418

Subject: General Aptitude · Chapter: Time and Work

A tyre has two punctures. The first puncture alone would have made the tyre flat in 9 minutes and the second alone would have done it in 6 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat ?
(a)$1 \frac{1}{2}$ minutes
(b)$3 \frac{1}{2}$ minutes
(c)$3 \frac{3}{5}$ minutes
(d)$4 \frac{1}{4}$ minutes
Answer
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Explanation
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