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    Question

    If A varies directly as B and inversely as C and A = 8,

    B = 2 and C = 5, what is the value of A when B = 6 and C = 5?
    A 24 Correct Answer Incorrect Answer
    B 18 Correct Answer Incorrect Answer
    C 30 Correct Answer Incorrect Answer
    D 16 Correct Answer Incorrect Answer

    Solution

    Let the constant be x, According to the question, => A = x × B/C => 8 = x × 2/5 => x = 20 Now putting the value of A, => A = 20 × (6/5) => A = 24

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