engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test Quantitative Aptitude Time and Work Pipe and Cistern
Pipe A and pipe B can fill the tank completely in 20 hours and 30 hours respectively. Pipe C can empty the completely filled tank in 24 hours. If pipe A and pipe B are opened together and after 10 hours pipe B is closed and pipe C is opened. Find the total time required to fill the tank completely. (in hours)
1
20 hours
2
24 hours
3
30 hours
4
100 hours