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    Question

    30, 42, 54, 66, ?, 

    90 What will come in place of the question mark (?) in the following series?
    A 78 Correct Answer Incorrect Answer
    B 65 Correct Answer Incorrect Answer
    C 72 Correct Answer Incorrect Answer
    D 58 Correct Answer Incorrect Answer

    Solution

    ATQ, The given series follows the following pattern: 30 + 12 = 42 42 + 12 = 54 54 + 12 = 66 66 + 12 = 78 78 + 12 = 90

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