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    Question

    Cylinder radius = 7 cm, height = 12 cm. It is melted

    into cones of radius 3.5 cm, height 8 cm. Find number of cones.
    A 22 Correct Answer Incorrect Answer
    B 10 Correct Answer Incorrect Answer
    C 14 Correct Answer Incorrect Answer
    D 18 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Vcylinder = π×7²×12 = 588π. Vcone = (1/3)π×3.5²×8 = (98/3)π. No. of cones = 588 / (98/3) = 18.

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