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    Question

    The ratio of A to B is 3: 4 and that of B to C is 1: 2.

    If B equals 720, A equals 
    A 360 Correct Answer Incorrect Answer
    B 540 Correct Answer Incorrect Answer
    C 180 Correct Answer Incorrect Answer
    D 348 Correct Answer Incorrect Answer

    Solution

    A: B = 3: 4 B: C = 1: 2 A: B: C = 3 × 1: 4 × 1: 4 × 2 = 3: 4: 8 If B equals 720, ⇒ 4unit = 720 Then 1 unit = 180 Therefore, A = 180x 3 = 540.

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