New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

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

    70, 69, 73, 64,80, 55,

    ?
    A 51 Correct Answer Incorrect Answer
    B 81 Correct Answer Incorrect Answer
    C 91 Correct Answer Incorrect Answer
    D 61 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, The series follows the pattern: 70 - 12 = 69, 69 + 22 = 73, 73 - 32 = 64, 64 + 42 = 80, 80 - 52 = 55, 55 + 62 = 91

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