If a tank is filled by a pipe in 6 hours and another pipe can empty it in 9 hour
Practice Questions
Q1
If a tank is filled by a pipe in 6 hours and another pipe can empty it in 9 hours, how long will it take to fill the tank if both pipes are opened together?
4 hours
5 hours
6 hours
7 hours
Questions & Step-by-Step Solutions
If a tank is filled by a pipe in 6 hours and another pipe can empty it in 9 hours, how long will it take to fill the tank if both pipes are opened together?
