Question

A tap p can fill an empty tank in 4 hours and a pipe q can empty the tank in 8 hours. if both the

Answer 1

in complete question plz change the qution

Answer 2

Ques: A tap p can fill an empty tank in 4 hours and a pipe q can empty the tank in 8 hours. if both the taps are opened at same time, calculate time required to fill the tank

Answer: Total time taken by both the taps opened at same time to fill the tank would be 8 hours

1) Tap P can fill the tank in 4 hours.

2) Tank filled by Tap P in one hour would be = 1/4

3) Tap Q can empty the tank in 8 hours.

4) Tank emptied by Tap Q in one hour would be = 1/8

5) Tank filled by Tap Q in one hour would be = -1/8

6) Total tank filled when both the taps are opened at same time = 1/4 +(-1/8)

= 1/4-1/8 = 1/8

7) Total time taken by both taps to fill would be 8 hours.