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

    Question

    In each of these questions a number series is given. In each series only one number is wrong. Find out the wrong number.

    9     20      63       255      

    1285      7716
    A 255 Correct Answer Incorrect Answer
    B 1285 Correct Answer Incorrect Answer
    C 63 Correct Answer Incorrect Answer
    D 7716 Correct Answer Incorrect Answer

    Solution

    9 x 2 + 2 = 20 20 x 3 + 3 = 63 63 x 4 + 4 =  256 256 x 5 + 5 = 1285 1285 x 6 + 6 = 7716

    Practice Next