Let the monthly savings of Arun and Baldev be Rs. ‘8x’ and Rs. ‘5x’ respectively. Monthly expenditure of Baldev = Rs. (8x + 20,200) Monthly expenditure of Arun = 8x + 20200 + 2200= Rs.(8x + 22,400) According to question, (8x + 8x + 22400)/(5x + 8x + 20200) = 8/7 (16x + 22400)/(13x + 20200) = 8/7 112x + 156800 = 104x + 161600 8x = 4800 So, monthly savings of Arun = Rs. 4800
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