Question

If a pipe can fill a tank in 2 hours and another pipe can fill the same tank in 40 minutes. How much time in minutes is needed to fill the tank if both the pipes are working together?​

Answer 1

Answer:

Step-by-step explanation:

1/2 for the first pipe's rate, and 1/8 for the second pipe's rate.

combine these two together to get the combined rate, which will be in the same fractional format: 1/x

so:

1/2+1/8=1/x

MARK IT THE BRAINELIST

Answer 2

Step-by-step explanation:

work capacity for first pipe is 1/120 and second 1/40 . so time

$t = \frac{120 \times 40}{120 + 40} = 30 \: minutes$