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    Question

    A:B = 4:7 and B:C = 3:5. Find

    A:C.
    A 15:13 Correct Answer Incorrect Answer
    B 12:35 Correct Answer Incorrect Answer
    C 18:23 Correct Answer Incorrect Answer
    D 17:14 Correct Answer Incorrect Answer

    Solution

    ATQ,

    B = LCM of 7 and 3 = 21 A = 4Γ—3 = 12 C = 5Γ—7 = 35 A:C = 12:35

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