Question

Pipe A fills a tank in 10 hr, Pipe B in 15 hr, and Pipe C empties in 30 hr. All open together. Time to fill?

A 6 hr 44 min
B 2 hr 10 min
C 7 hr 30 min
D 1 hr 10 min
Practice Next

More Pipes and cisterns Questions

Hey! Ask a query