The radii of two cylinders are in the ratio 2:3 and their heights are in the ratio 5:3 .The ratio of their volumes is​

Question

The radii of two cylinders are in the ratio 2:3 and their heights are in the ratio 5:3 .The ratio of their volumes is​

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Arianna 3 months 2021-07-31T15:00:19+00:00 1 Answers 0 views 0

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    2021-07-31T15:01:41+00:00

    Answer:

    Correct option is

    D

    20:27

    As radii of two cylinder in in ratio of 2:3

    So radius of 1st cylinder=2r

    radius of 2st cylinder=3r

    heights are in the ratio 5:3.

    height of 1st cylinder=5h

    height of 2st cylinder=3h

    ratio of volume=volume of 1st cylinder/volume of 2nd cylinder

    V=Π(2r)

    2

    ∗5h/Π(3r)

    2

    ∗3h

    V=20rh/27rh

    V=20/27

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