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    Question

    A sphere of radius 21 cm is melted and recast to form

    β€˜n’ numbers of smaller cuboids of dimension 21 cm Γ— 11 cm Γ— 7 cm. Find the value of β€˜n’.
    A 7 Correct Answer Incorrect Answer
    B 21 Correct Answer Incorrect Answer
    C 35 Correct Answer Incorrect Answer
    D 24 Correct Answer Incorrect Answer

    Solution

    According to question;
    (4/3) Γ— (22/7) Γ— 21 Γ— 21 Γ— 21 = n Γ— 21 Γ— 11 Γ— 7
    Or, n = 24

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