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 ?
Choose the correct answer:
A) 315min	B) 325min	C) 335min	D) 345min	E) None of these
Explanation:   Do not be confused, Take this question same as that of work done question's. Like work done by 1st   puncture in 1 minute and by second in 1 minute.   Lets Solve it:   1 minute work done by both the punctures =   (19+16)=(518)   So both punctures will make the type flat in   (185)mins=335mins   Answer: 335min
<result>C</result>
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 ?