Question

a pipe can fill a cistern in 6 hours. due to a leak in its bottom, it is filled in 10 hours. if the cistern is full,In how much time will it be emptied by the leak?
please solve this and please don't spamming because it's very urgent​

Answer 1

Answer:

1/6–1/x=1/7

1/6–1/7=1/x

(7–6)/42=1/x

1/42=1/x

x=42 hours for the leak to empty the cistern