Question

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

    13, 91, 108, 756, ?, 

    5411
    A 755 Correct Answer Incorrect Answer
    B 773 Correct Answer Incorrect Answer
    C 689 Correct Answer Incorrect Answer
    D 658 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, The given series follows the pattern of alternate multiplication by 7 and addition of 17. 13 X 7 = 91 91 + 17 = 108 108 X 7 = 756 756 + 17 = 773 773 X 7 = 5411

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