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    Question

    If ‘X’, ‘Y’ and ‘Z’ are in proportion in the

    same order and ‘X’ = 36 and ‘Y’ = 54, then find the value of ‘Z’.
    A 25 Correct Answer Incorrect Answer
    B 55 Correct Answer Incorrect Answer
    C 61 Correct Answer Incorrect Answer
    D 81 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Given, X = 36

    And, Y = 54

    Since, ‘X’, ‘Y’ and ‘Z’ are in proportion.

    So, (X/Y) = (Y/Z)

    So, Z = (54 × 54)/36 = 81

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