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    1. Home
    2. Questions
    3. Quantitative Aptitude
    4. Missing Series
    5. 7, 9, 21, ?, 107, 197

    Question

    What will be come in place of question mark (?) in the given number series

    7, 9, 21, ?, 107,

    197
    A 51 Correct Answer Incorrect Answer
    B 61 Correct Answer Incorrect Answer
    C 71 Correct Answer Incorrect Answer
    D 41 Correct Answer Incorrect Answer

    Solution

    ATQ, 7 + 1 × 2 = 9 9 + 3 × 4 = 21 21 + 5 × 6 = 51 51 + 7 × 8 = 107 107 + 9 × 10 = 197

    Practice Next
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    Relevant for Exams:

    • FCI Assistant Grade 3

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