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    Question

    The expenditure-to-savings ratio

    of an individual 'P' is 5:4. If the person's income rises by 25% and their savings increase by 31.25%, what percentage increase should their expenditure undergo?
    A 22% Correct Answer Incorrect Answer
    B 20% Correct Answer Incorrect Answer
    C 18% Correct Answer Incorrect Answer
    D 32% Correct Answer Incorrect Answer

    Solution

    ATQ, Let, expenditure and savings of a person 'P' be Rs. 5x and Rs. 4x, respectively. Therefore, income of 'P' = expenditure + savings = 5x + 4x = Rs. 9x According to question, 9x ├Ч 125% = 4x ├Ч 131.25% + Expenditure Expenditure = 11.25x тАУ 5.25x = Rs. 6x Therefore, percentage increase in expenditure = [(6x тАУ 5x)/5x] ├Ч 100 = 20%

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