Question

a continent has two holes the first hole alone empties the container in 15 minutes and second hole alone empties the container in 10 minutes if water leak out at constant rate how many long does it take of both the holes together empty the container?​

Answer 1

First Hole can Empty the container in =15 minutes

1 minutes Work of First Hole=1/15

Second Hole Can Empty the container in=10 minutes

1 minutes Work of Second Hole=1/10

If they Work , Together.

Their 1 min Work

1/15+1/10

=1×2+3×1/30

=2+3/30

=5/30

=1/5

In 1 Minute Both Hole can Empty 1/5 Of water.

Total Time Taken to Empty Whole container

=1/5=5 minutes

$\boxed{\mathbf{\large{Time=5\: minutes}}}$