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

    Question

    Find the wrong number in the given number series 

    3, 8, 28, 88, 258,

    648 
    A 648 Correct Answer Incorrect Answer
    B 88 Correct Answer Incorrect Answer
    C 258 Correct Answer Incorrect Answer
    D 8 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 3 + 5 × 1 = 8 8 + 10 × 2 = 28 28 + 20 × 3 = 88 88 + 40 × 4 = 248 248 + 80 × 5 = 648 Therefore, 248 should come in the place of 258.

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