Question

    2 5 16 65 326

    ? What will come in place of the question mark (?) in each of the following series?
    A 1958 Correct Answer Incorrect Answer
    B 1946 Correct Answer Incorrect Answer
    C 1957 Correct Answer Incorrect Answer
    D 1955 Correct Answer Incorrect Answer
    E 1959 Correct Answer Incorrect Answer

    Solution

    2 × 2 + 1 = 5 5 × 3 + 1 = 16 16 × 4 + 1 = 65 65 × 5 + 1 = 326 326 × 6 + 1 = 1957

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