Question
The average expenditure of a man for the first 7 month
is Rs.5000 and for the next 5 months is Rs.8000. If he saves 12000 in that year then find his average monthly income.Solution
Total expenditure in first 7 months = 5000 × 7 = Rs.35000 Total expenditure in last 5 month = 8000 × 5 = Rs.40000 Total income of the man in a year = 35000 + 40000 + 12000 = Rs.87000 So average income in a month = 87000/12 = Rs. 7250
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