Question

    If 54 [9] 3 and 108 [30] 5, then what is the value of Z

    in 19 [Z] 18?
    A 18 Correct Answer Incorrect Answer
    B 19 Correct Answer Incorrect Answer
    C 36 Correct Answer Incorrect Answer
    D 72 Correct Answer Incorrect Answer

    Solution

    The pattern is that the number in the middle is obtained by multiplying the numbers on each sides and then dividing the result by ‘18’.   Hence, the correct answer is (B).

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