(2) let the inlet pipe can fill the tank in x h. Then,
1
6
−
1
x
=
1
8
⇒
1
x
=
1
6
−
1
8
=
1
24
Therefore, inlet pipe will take 24 h to fill the tank. Now, In 1 min inlet pipe fill = 4 L ∴ In 24 h, inlet pipe will fill = 4 x 60 x 24= 5760 L which is the capacity to tank