Question

A 2cm diameter hose pipe can
carry at most 40 litres of water per
minute. If a new hose pipe with a
diameter equal to 1.5 cm is installed, how
much water will it carry? If the amount
of water that the pipe can hold depends
the square of the diameter.
​

Answer 1

Answer:

The 1.5 cm diameter pipe will carry = 22.5 litre/min

Step-by-step explanation:

If 2cm diameter hose pipe can carry water 40litre/min

So,

1.5 cm diameter pipe will carry = x litre/min

We know that,

(diameter of pipe)^2 ∝ speed of water

So,

(2)^2*x = (1.5)^2*40

=>4x= 90

=>x = 22.5 litre/min

Hence, The 1.5 cm diameter pipe will carry = 22.5 litre/min

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