Question

a tank can be filled by a pipe A in hours and pipe B in 15 hours .an outlet pipe C can empty the tank in 10 hours .if the tank is initially empty and all these pipes are open .how many hours will it take to fill up the tank ..​

Answer 1

Answer:

6 hours night cause I don't have no I was at the same time to➡ us vdd fyzgc

Answer 2

Answer:

4 hours

Step-by-step explanation:

A= 12 hours ,  A will fill 1/12 of tank in an hour

B= 15 hours ,  B will fill 1/15 of tank in an hour

C= 10 hours ,  C will fill 1/10 of tank in an hour

No. of hours it  will take to fill tank

= 1 ÷ (1/12 + 1/15 + 1/10)

= 1 ÷ 15/60

= 60/15

= 4

Therefore, it will take 4hours to fill up the tank