1. The average expenditure of a man for the first five months is Rs. 1200 and for the next seven months is Rs. 1300. Find his monthly average income if he saves Rs. 2900 during the year ?
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By: anil on 05 May 2019 02.43 am
Let his monthly salary be x rupees. So, 5 (x - 1200) + 7 (x-1300) = 2900 12x - 6000 - 9100 = 2900 So, x = 18000/12 = 1500
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