Question
A spent 30% and 22% of his monthly salary on food and
rent, respectively. Of the remaining amount, he gave 20% and 40% to his mother and brother, respectively. Find the amount spent by him on food, if the difference between the amount received by his brother and the amount spent on rent is Rs. 1400.Solution
Let the monthly salary of A be Rs. ‘x’ Amount spent on food = Rs. 0.30x Amount spent on rent = Rs. 0.22x Amount received by brother = (x – 0.30x – 0.22x) × 0.40 = 0.192x So according to question: => 0.22x – 0.192x = 1400 => 0.028x = 1400 => x = 50000 So, the amount spent on food = 0.30 × 50000 = Rs. 15000
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