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    What should come in place of the question mark (?) in the given series?6, 6, 9, 18, 45, ?
    Question

    What should come in place of the question mark (?) in the given series?
    6, 6, 9, 18, 45, ?

    A.

    140

    B.

    150

    C.

    135

    D.

    145

    Correct option is C

    Given Series:
    6, 6, 9, 18, 45, ?
    Step-by-step Analysis:
    Step 1: Check how each number leads to the next
    6 → 6 => ×1
    6 → 9 =>  ×1.5
    9 → 18 => ×2 
    18 → 45 => ×2.5 
    45 → ? => try ×3 
    So the pattern is:
    45 × 3 = 135
    Final Answer: (C) 135

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