Question

The average expenditure of a man for the first five months of a year is r 5000 and for the next seven months is r 5400 he saves r 2300 during a year find his average monthly income

Answer 1

total money spended in the 5 months = 5000X5=25000
total money spended in the next 7 month = 5400X7=37800
money saved = 2300
total years income=25000+37800+2300=67400
average monthly income=67400 divided by 12=5616