Question

tank can be filled by tap A in 4 hours and emptied by outlet pipes B and C in
w hours and 8 hours, respectively. If all the three are kept open, find the time taken to
fill the tank.​

Answer 1

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Answer 2

when A is filled by 4 hours

which was outlet by a pipe of B so it is emptied and the A is attached to B pipe so we now already C is 8 hours so

Step-by-step explanation:

x=4

y=8

then add x and y

4+8=w

w=4+8

=√12

=6

so B is filled with in 6 hours