defence exam Indian Navy Chargeman/Draughtsman Mock Test 2023 Quantitative Aptitude Time and Work Pipe and Cistern
Pipe X can fill a to a tank 7 times faster in comparison to pipe Y. It takes 49 minutes for pipe X and Y to fill the tank together. How much time will pipe Y alone take to fill the tank?
1
391 minutes
2
392 minutes
3
393 minutes
4
390 minutes