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    Question

    The ratio of income and expenditure of a person is 8 :

    5, respectively. If the income and expenditure of the person are increased by 25% and 20% respectively, then find the percentage increase in savings.
    A 20% Correct Answer Incorrect Answer
    B 25% Correct Answer Incorrect Answer
    C 16.67% Correct Answer Incorrect Answer
    D 33.33% Correct Answer Incorrect Answer

    Solution

    Let the income of the person be Rs. β€˜8x’ So, expenditure = Rs. β€˜5x’ So, savings = 8x – 5x = Rs. β€˜3x’ New income = 8x Γ— 1.25 = Rs. β€˜10x’ New expenditure = 5x Γ— 1.2 = Rs. β€˜6x’ New savings = 10x – 6x = Rs. β€˜4x’ So, required percentage increase
    = {(4x – 3x) / 3x} Γ— 100
    = 33.33%

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