Question

There are two pipes. Twice the water flow in the hot water pipe is equal to three times the water flow from the cold pipe. Combined it equals 1200 L/hour. What is the flow in each pipe?

Answer 1

rate of flow of hot water = 480 L/hour

and rate of flow of cold water = 720 L/hour

Explanation:

Suppose rate of flow of hot water = x

and rate of flow of cold water = y

Given that,

Twice the water flow in the hot water pipe is equal to three times the water flow from the cold pipe.

Combined it equals 1200 L/hour.

According to the question

Equation 1

2x = 3y

Equation 2

x + y = 1200

x = 1200 - y

put this value of x in equation1

2(1200-y) = 3y

2400 - 2y = 3y

2400 = 5y

y = 480

x = 3(480)/2

x = 720