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    Question

    A Solid Cone of height 18cm diameter of its base 36cm is

    cut from a wooden Solid sphere of radius 18cm. the percentage of wood wasted is ?
    A 75% Correct Answer Incorrect Answer
    B 60% Correct Answer Incorrect Answer
    C 80% Correct Answer Incorrect Answer
    D 66(2/3)% Correct Answer Incorrect Answer

    Solution

    (Volume of Cone)/(Volume of Sphere) = (1/3 π r2 h)/(4/3 π r³) = (1/3 × π ×(18)2× 18)/(4/3 × π ×(18)³) = 1/4 Wood that is wasted = 3/4 × 100 = 75%

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