Question

a water tank is filled in 4 hours. it is decided to fill it in 3 hours. the flow rate shall be increased by

Answer 1

Answer:

33%

Step-by-step explanation:

A water tank is filled in 4 hours.

Let the capacity of the tank = 1

The flow rate of the tap = 1/4 lit / hr ...(1)

When the tank needs to be filled in 3 hrs, required flow rate will be,

Required flow rate = 1/3 lits / hr ....(2)

Increase in the flow rate = New flow rate - existing flow rate

∴ Increase in the flow rate = 1/3 - 1/4

∴ Increase in the flow rate = (4-3) / 12

∴ Increase in the flow rate = 1/12 lits/hr

% increase = (Increase in flow rate ÷ existing flow rate)  × 100

∴% Increase in flow rate = (1/12 ÷ 1/4)× 100

∴ % Increase in flow rate = 33%