engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Quantitative Aptitude Time and Work Pipe and Cistern
A water tank is filled in 5 hours by three pipes X, Y and Z. The pipe Z is thrice as fast as Y and Y is twice as fast as X. How much time will pipe X alone take to fill the water tank?
1
60 hrs
2
45 hrs
3
40 hrs
4
35 hrs