same work, working alone.13. A pipe can fill a tank in 12 hours. By mi

1.	same work, working alone.13. A pipe can fill a tank in 12 hours. By mistake, a waste pipe at the bottom is leftopened and the tank is filled in 16 hours. If the tank is full, how much time will thewaste pipe take to empty it?tied by the waste pipe in one hour ==12 16 48
Answer» Given that the pipe can fill a tank without any leak in 12 hrs. Work done without leak in 1 hour = 1/12. Given that the waste pipe can fill a tank with leak in 16 hrs. Work done with leak in 1 hour = 1/16. Now, Work done by leak in 1 hour = 1/12 - 1/16 = 4 - 3/48 = 1/48. So, the total time takento empty it = 48 hours.

same work, working alone.13. A pipe can fill a tank in 12 hours. By mistake, a waste pipe at the bottom is leftopened and the tank is filled in 16 hours. If the tank is full, how much time will thewaste pipe take to empty it?tied by the waste pipe in one hour ==12 16 48

Answer»

Given that the pipe can fill a tank without any leak in 12 hrs.

Work done without leak in 1 hour = 1/12.

Given that the waste pipe can fill a tank with leak in 16 hrs.

Work done with leak in 1 hour = 1/16.

Now,

Work done by leak in 1 hour = 1/12 - 1/16

= 4 - 3/48

= 1/48.

So, the total time takento empty it = 48 hours.