Question

8 taps are fitted in a
tank, some are water
taps and rest are
outlet
taps. Each
water tap can fill the
tank in 12 hrs and
each outlet tap can
empty it in 36 hrs.
Find the number of
outlet water taps, if
the whole tank can
be filled in 3 hrs.

2
7.
5
3​

Answer 1

Step-by-step explanation:

3 is the ans hope it helps you

Answer 2

Given :  8 taps are fitted in a tank, some are water taps and rest are outlet taps. Each water tap can fill the tank in 12 hrs and each outlet tap can empty it in 36 hrs.

To Find : the number of outlet water taps, if the whole tank can be filled in 3 hrs.

Solution:

Each water tap can fill the tank in 12 hrs

=>  Each water tap can fill the tank in  1 hr  = 1/12

Each outlet tap can empty it in 36 hrs

=> Each outlet tap can empty in 1 hr  = 1/36

Let say water tap  = W

& outlet Tap = 8 - W

W water tap can fill the tank in  1 hr  = W/12

W water tap can fill the tank in  3 hr  = 3 * W/12   =  W/4

8 - W   outlet tap can empty in 1 hr  = (8 - W) /36

8 - W   outlet tap can empty in 3 hr  = 3 *(8 - W) /36  = (8 - W )/12

W/4 - (8 - W )/12  = 1

=> 3W  - (8 - W)  = 12

=> 4W  = 20

=> W = 5  

Water Taps = 5

Outlet Tap = 3

3 is the correct answer

Learn More:

31. Six pipes are fitted to a water tank. Some of these areinlet pipes ...

https://brainly.in/question/10004074

A Cistern has an inlet pipe and outlet pipe. The inlet pipe fills the ...

https://brainly.in/question/12910817