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

    Question

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

    13 15 ? 63 143

    293
    A 27 Correct Answer Incorrect Answer
    B 31 Correct Answer Incorrect Answer
    C 30 Correct Answer Incorrect Answer
    D 25 Correct Answer Incorrect Answer
    E 42 Correct Answer Incorrect Answer

    Solution

    13 + 1² + 1³ = 15 15 + 2² + 2³ = 27 27 + 3² + 3³ = 63 63 + 4² + 4³ = 143 143 + 5² + 5³ = 293

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