Question
The average expenditure of a man for the first 4 month
is Rs.5000 and for the next 8 months is Rs.8000. If he saves 12000 in that year then find his average monthly income.Solution
Total expenditure in first 4 months = 4 × 5000 = Rs.20000 Total expenditure in last 8 month = 8 × 8000 = Rs.64000 Total income of the man in a year = 20000 + 64000 + 12000 = Rs.96000 So average income in a month = 96000/12 = Rs. 8000
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