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9th Class Mathematics Surface Areas and Volumes Question Bank Surface Areas and Volume

  • question_answer
    The volumes of two spheres are in the 125 : 64. If the radius is increased  by 30 % in first sphere and 50 % in second sphere, then the ratio between their surface areas is __________

    A) 144 : 121                                              

    B)  125 : 64     

    C)  1 : 1                                                                

    D)  169 : 144

    E)  None of these

    Correct Answer: D

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