Question

7. A pipe can fill a cistem in 6 hours. Due to a 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?​

Answer 1

Answer:

42 hours

Step-by-step explanation:

Let the leak will empty the tank = x hours

According to question,

1/6−1/x=1/7

=>1/x=1/6−1/7

=7−6/42

1/x=1/42

=>x=42hours

Answer 2

42 hours.

Step-by-step explanation:

Since a pipe fills a cistern in 6 hrs it means that a pipe can fill a cistern 1/6 of it every hr.