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Volume and Surface Area of Solid Figures

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  1. If the volumes of two cubes are in the ratio 8 : 1, the ratio of their edges, is ?
    1. 8 : 1
    2. 2√2 : 1
    3. 2 : 1
    4. None of these
Correct Option: A

Volume of new cube = [(5)3 + (4)3 + (3)3] cm3
= 216 cm3
Edge of this cube = ( 6 x 6 x 6)1/3 = 6 cm


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