Question

Pipe ‘X’ alone can fill a tank in 20 hours. When both pipes ‘X’ and ‘Y’ are opened together, they can fill 75% of the tank in 9 hours. How much time will pipe ‘Y’ alone take to fill 80% of the same tank?

A 24 hrs
B 15 hrs
C 18 hrs
D 12 hrs
E None of these
Practice Next

More Pipes and cisterns Questions

Relevant for Exams:

Hey! Ask a query