Question
Monthly savings of ‘A’ is Rs. 600 more than his
monthly expenditure and his total monthly income is Rs. 5000. If his monthly income is increased by 40% and his monthly savings is increased by 37.5%, then find the increase in his monthly expenditureSolution
Monthly savings of ‘A’ = (5000 + 600)/2 = Rs. 2800 Monthly expenditure of ‘A’ = 5000 – 2800 = Rs. 2200 Increased monthly expenditure of ‘A’ = 1.40 × 5000 – 1.375 × 2800 = Rs. 3150 Desired increase = 3150 – 2200 = Rs. 950
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