Question

    If 14 (x - y)  = 2744 and 14 (x +

    y) = 537824, what is the value of x?
    A 4 Correct Answer Incorrect Answer
    B 4.5 Correct Answer Incorrect Answer
    C 5.5 Correct Answer Incorrect Answer
    D 5 Correct Answer Incorrect Answer

    Solution

    14 (x - y)   = 2744 = 143 x - y = 3 ----------------(1) 14 (x + y)   = 537824 = 145 x + y = 5 ---------------(2) Adding (1) & (2) 2x = 3 + 5 = 8 x = 8/2 = 4

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