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 1/2` minutes b. `3 1/2` minutes c. `3 3/5` minutes d. `4 1/4` minutes

A tyre has 2 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? एक टायर में दो पंक्चर हैं। पहला पंक्चर अकेला टायर को 9 मिनट में फ्लैट कर देता है और दूसरा पंक्चर अकेला वह 6 मिनट में कर देता है। यदि हवा स्थिर गति से निकले, तो दोनों पंक्चर मिल कर उसे कितनी देर में फ्लैट कर देंगे?

A flask has two holes. The 1^("st") hole alone makes the flask empty in 9 minutes and 2^("nd") hole alone makes the flask empty in 16 minutes. If water leaks out at a constant rate, how long in minutes does it take both the holes empty the flask?

A water tank has two holes. The 1^(st) hole alone empties the tank in 8 minutes and 2^(nd) hole alone empties the tank in 12 minutes. If water leaks out at a constant rate, bow many minutos will it take, if both the holes together empty the tank?

A glass containing water has two holes. The 1^(st) hole alone empties the gas in 9 minutes and 2^(nd) hole alone empties the glass in 3 minutes. If water leaks out at a constant rate, how many minutes will it take if both the holes together empty the glass?

A water tank has two holes. The 1st hole alone makes the tank empty in 3 min and 2nd hole alone makes the tank empty in 5 min. If water leaks out a constant rate, how long in minutes does it. If both the holes together empty the tank?

Two pipes A and B can fill a cistern in 4 minutes and 6 minutes respectively. If these pipes are turned on alternately for 1 minute each how long will it take for the cistern to fill?