Question

    What should come in place of question mark '?' in the following number series?

    120 60 90 ? 787.5

    3543.75
    A 320 Correct Answer Incorrect Answer
    B 840 Correct Answer Incorrect Answer
    C 365 Correct Answer Incorrect Answer
    D 225 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    120 × 0.5 = 60 60 × 1.5 = 90 90 × 2.5 = 225 225 × 3.5 = 787.5 787.5 × 4.5 = 3543.75

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