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

    Question

    Monthly savings of ‘A’ is Rs. 1600 more than his

    monthly expenditure and his total monthly income is Rs. 4800. If his monthly income is increased by 40% and his monthly savings is increased by 37.5%, then find the increase in his monthly expenditure
    A Rs. 700 Correct Answer Incorrect Answer
    B Rs. 740 Correct Answer Incorrect Answer
    C Rs. 720 Correct Answer Incorrect Answer
    D Rs. 780 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Monthly savings of ‘A’ = (4800 + 1600)/2 = Rs. 3200 Monthly expenditure of ‘A’ = 4800 – 3200 = Rs. 1600 Increased monthly expenditure of ‘A’ = 1.40 × 4800 – 1.375 × 3200 = Rs. 2320 Desired increase = 2320 – 1600 = Rs. 720

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