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NTSE Sample Paper NTSE SAT Practice Test-18

  • question_answer
    If the weight of a spherical ball of radius 0.5 cm is 12 grams, then the weight of the ball of same material with radius 1 cm is

    A) 144 grams         

    B)        96 grams

    C) 48 grams          

    D) 24 grams

    Correct Answer: B

    Solution :

    [b] when radius is doubled, volume becomes 8 times. Since weight is proportional to volume, so the weight of the ball is 8x12 grams i.e. 96 grams.


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