If a cistern is filled by two pipes in 12 hours and 15 hours respectively, how l
Practice Questions
Q1
If a cistern is filled by two pipes in 12 hours and 15 hours respectively, how long will it take to fill the cistern if both pipes are opened together?
6 hours
7.2 hours
8 hours
9 hours
Questions & Step-by-Step Solutions
If a cistern is filled by two pipes in 12 hours and 15 hours respectively, how long will it take to fill the cistern if both pipes are opened together?
