Question

if 5 pipes can fill tank in one hour then 4 pipes will fill the tank in

Answer 1

Answer:

Step-by-step explanation:

5 pipe fill in tank =1h

1 pipe ...................=1/5h

4pipe ...................=1/5×4

=4/5

=0.8×60

=48minute

Answer 2

Given,

A tank can be filled in one hour by 5 pipes.

To Find,

How many hours are needed to fill the tank with 4 pipes.

Solution,

We can solve this mathematical problem with the unitary method, which is as follow:

5 pipes can fill the tank in 1 hour.

So, 1 pipe can fill the tank in 1×5 hours.

∴4 pipes can fill the tank in $\frac{5}{4}$ hours.

Hence, 4pipes will fill the tank in  $\frac{5}{4}$ hours.