Question

    What will come in place of the question mark (?) in the following series?

    18, 30, 54, 90, 138,

    ?
    A 236 Correct Answer Incorrect Answer
    B 252 Correct Answer Incorrect Answer
    C 198 Correct Answer Incorrect Answer
    D 120 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 18 + 12 × 1 = 30 30 + 12 × 2 = 54 54 + 12 × 3 = 90 90 + 12 × 4 = 138 138 + 12 × 5 = 198

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