A pipe can fill a cistern in 6 hours .Due to leak in the bottom,it is filled in 7 hours.When the cistern is full,in how much time will it be emptied by the leak?
Ans with steps plssss.....
Answers
Answered by
80
I hope it would help you .
Attachments:
Answered by
119
See it takes 6hrs to fill the cistern so in 1hr 1/6th of the cistern gets filled.Next we see that due to leak the cistern gets filled in 7hrs i.e in 1 hr 1/7 th of the cistern is filled.
So in how many hrs will it get empty when it is filled??
That is 1/6(amt filled without leak)-1/7(amt filled with leak)
So 1/6-1/7=1/42=42hrs
Hope it helps☺
Similar questions