Question

3. Two taps A and B can fill an overhead tank in 10 hours and 15 hours respectively Be
the tans are opened for 4 hours and then B is turned off. How much time will A take to
fill the remaining tank?​

Answer 1

Answer:

3hr 20mins

Step-by-step explanation:

total work is 30 units

A+B do this in 6hr (30/5=6)

A and B are open 4hr it's fill 20unit

remaining 10 untis A will do in 3hr 20 min