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    Question

    A right circular cylinder having diameter 21 cm & height

    38 cm is full of ice cream. The ice cream is to be filled in cones of height 12 cm and diameter 7 cm having a hemispherical shape on the top. The number of such cones to be filled with ice cream is
    A 54 Correct Answer Incorrect Answer
    B 44 Correct Answer Incorrect Answer
    C 36 Correct Answer Incorrect Answer
    D 24 Correct Answer Incorrect Answer

    Solution

    Diameter of cylinder = 21 cm  Height of cylinder = 38 cm  The diameter of cone = 7 cm  The height of cone = 12 cm  The diameter of Hemisphere = 7 cm Let 'R' be the radius of Cylinder, 'r' be the radius of  Cone, 'H' be the height of Cylinder and 'h' be the height of Cone R = 21/2 cm, H = 38 cm, r = 7/2 and h = 12 cm Let number of cone be n, then According to the question

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