Multiple Choice Questions on The diameter in meter of a sphere whose volume is 268 4 21 m3 is ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

The diameter in meter of a sphere whose volume is 268 4 21 m3 is ........

Quantitative Aptitude ( CCS) Mensuration 3D
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    The diameter (in meter) of a sphere whose volume is 268 (4/21) m3 is

    6 m

    Incorrect Answer

    7 m

    Incorrect Answer

    8 m

    Correct Answer

    9 m

    Incorrect Answer
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    Explanation:

    Volume of the sphere = 268 (4/21) = 5632 / 21 m3. 
    Now 4/3 π3 = 5632 / 21 
    ⇒ r3 = (5632 / 21) x (3/4) x (7/22) = 64 
    ⇒ r = 4m Hence diameter = 8m

    By: MIRZA SADDAM HUSSAIN
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