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    Question

    If A:B:C = 3:4:7 and (C - A + B) = 48, then find the

    value of (2C + A2).
    A 276 Correct Answer Incorrect Answer
    B 196 Correct Answer Incorrect Answer
    C 324 Correct Answer Incorrect Answer
    D 408 Correct Answer Incorrect Answer

    Solution

    Let 'A' = '3x' So, B = 3x X (4/3) = '4x' And, C = 3x X (7/3) = '7x' ATQ: 7x - 3x + 4x = 48 Or, 8x = 48 So, x = 6 So, required value = 2 X 7 X 6 + (3 X 6)2┬а= 84 + 324 = 408

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