Question

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

    64, 80, 120, 210, ?,  945

    A 520 Correct Answer Incorrect Answer
    B 420 Correct Answer Incorrect Answer
    C 550 Correct Answer Incorrect Answer
    D 350 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 64 × 1.25 = 80 80 × 1.5 = 120 120 × 1.75 = 210 210 × 2 = 420 420 × 2.25 = 945

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