Question
Monthly savings of ‘A’ is Rs. 1000 more than his
monthly expenditure and his total monthly income is Rs. 8200. 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’ = (8200 + 1000)/2 = Rs. 4600 Monthly expenditure of ‘A’ = 8200 – 4600 = Rs. 3600 Increased monthly expenditure of ‘A’ = 1.40 × 8200 – 1.375 × 4600 = Rs. 5155 Desired increase = 5155 – 3600 = Rs. 1555
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