Multiple Choice Questions on A large water tank has the shape of a cube If 128 m3 of water is pumped out the water level goes dow........... for CDS Exam Preparation

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Multiple Choice Questions

A large water tank has the shape of a cube If 128 m3 of water is pumped out the water level goes dow...........

Quantitative Aptitude (CDS) Pipes&cistern
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    A large water tank has the shape of a cube. If 128 m3 of water is pumped out, the water level goes down by 2 m. Then the maximum capacity of the tank is

    512 m3

    Correct Answer

    480 m3

    Incorrect Answer

    324 m3

    Incorrect Answer

    256 m3

    Incorrect Answer
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    Explanation:

    Let the edge of the cube be a m.
    Volume of the water pumped out=128m3
    ⇒a×a×2=128
    ⇒a2=64
    ⇒a=8m
    Therefore, maximum capacity of the tank=a3=83=512m3

    By: Munesh Kumari
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