Question
The average expenditure of a man for the first four
month is Rs.12000 and for the next eight months is Rs.10000. If he saves 13000 in that year then find his average monthly income.Solution
Total expenditure in first 4 months = 12000 × 4 = Rs.48000 Total expenditure in last 8 month = 10000 × 8 = Rs.80000 Total income of the man in a year = 48000 + 80000 + 13000 = Rs.141000 His average income in a month = 141000/12 = Rs. 11750
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