One pipe can fill the tank in 20 min while another pipe can empty it in 60 min. If both the pipes are operated together, how long will it take to fill the tank completely?
A30 min
B10 min
C40 min
D20 min
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
Manoj can do a piece of work in 8 hours. Anand can do it in 8 hours. With the assistance of Anil, they completed the work in 2 hours. In how many hours can Anil alone do it?
If 30 workers can do a work in 40 days. In how many days will 40 workers do the same work?
A and B together can complete a work in 8 days. B alone can complete the work in 24 days. In how many days A alone can complete the same work?
A and B together can complete a piece of work in 4 days. If A alone can complete the same work in 12 days, in how many days can B alone complete that work?
A and B can separately do a piece of work in 6 days and 12 days respectively. How long will they together take to do the work ?