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    1. Home
    2. Questions
    3. Quantitative Aptitude
    4. Wrong Series
    5. 45, 54, 66, 84, 99, 120, 144

    Question

    Find the wrong number in the given number series 

    45, 54, 66, 84, 99, 120,

    144
    A 54 Correct Answer Incorrect Answer
    B 66 Correct Answer Incorrect Answer
    C 45 Correct Answer Incorrect Answer
    D 84 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 45 + (3 X 3) = 54 54 + (3 X 4) = 66 66 + (3 X 5) = 81 81 + (3 X 6) = 99 99 + (3 X 7) = 120 120 + (3 X 8) = 144 Therefore, 81 should come in place of 84.

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    Relevant for Exams:

    • IBPS RRB PO
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