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    Question

    7 15 44 89 ?

    533 What should come in place of the question mark (?) in the following number series?
    A 66 Correct Answer Incorrect Answer
    B 266 Correct Answer Incorrect Answer
    C 146 Correct Answer Incorrect Answer
    D 166 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    7 × 2 + 1 = 15 15 × 3 - 1 = 44 44 × 2 + 1 = 89 89 × 3 – 1 = 266 266 × 2 + 1 = 533

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