Maths-
General
Easy

Question

How many litres of water flows out through a pipe having an area of cross-section of 5 cm2 in one minute, if the speed of water in pipe is 30 cm/sec?

hintHint:

We use logical thinking to solve the problem.

The correct answer is: 9 Litre of water flows out through the given pipe.


    Explanations:
    Step 1 of 2:
    Area of the cross-section of the pipe = 5 cm2
    Speed of water flow in pipe = 30 cm/sec
    therefore Flow of water in 1 minute = 30 × 60 cm (since 1 min = 60 sec)
    = 1800 cm
    Step 2 of 2:
    Area of mouth of pipe = 5 cm2
    ∴Volume = 1800 ×5 = 9000 cm3
    Volume of water in litres = 9 L (since 1 L = 1000 cm3)
    Final Answer:
    9 Litre of water flows out through the given pipe.

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