A tank can be filled by a pipe in 15 hours and emptied by another pipe in 20 hou
Practice Questions
Q1
A tank can be filled by a pipe in 15 hours and emptied by another pipe in 20 hours. If both pipes are opened together, how long will it take to fill the tank?
10 hours
12 hours
15 hours
18 hours
Questions & Step-by-Step Solutions
A tank can be filled by a pipe in 15 hours and emptied by another pipe in 20 hours. If both pipes are opened together, how long will it take to fill the tank?
