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

    Question

    40% of 30% of 750 = x + 15, then find the sum of the

    squares of the digits of 'x'.
    A 40 Correct Answer Incorrect Answer
    B 90 Correct Answer Incorrect Answer
    C 74 Correct Answer Incorrect Answer
    D 66 Correct Answer Incorrect Answer

    Solution

    ATQ,

    40% of 30% of 750 = x + 15

    Or, (2/5) × (3/10) × 750 = x + 15

    Or, 90 = x + 15

    Or, x = 75

    Required sum = 7² + 5² = 49 + 25 = 74

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