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    In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number Which numbers should repl
    Question

    In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number Which numbers should replace X and Y so that the pattern followed by the two numbers on the left side of :: is the same as that on the right side of :: ?

    X : 125 :: 13 : Y

    A.

    X = 12 , Y = 173

    B.

    X = 11 , Y = 173

    C.

    X = 11 , Y = 169

    D.

    X = 12 , Y = 169

    Correct option is B

    Given: X : 125 :: 13 : Y

    Logic: Square of 1st + 4 = second. 

    Form the option (b) X = 11 , Y = 173

    112+4=121+4=125 132+4=169+4=17311^2 + 4 = 121+4 = 125 \\ \ \\ 13^2 + 4 = 169 + 4 = 173

    Thus, the correct answer is (b).

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