A man earns 480 naira a month.he spends 390naira every month and saves the rest.find the ratio of his monthly salary to his expenditure
To find the ratio of his monthly salary to his expenditure, we first need to calculate both values.
Monthly salary: 480 naira
Monthly expenditure: 390 naira
Now we can find the ratio by dividing the monthly salary by the expenditure:
Ratio = Monthly salary / Monthly expenditure
Ratio = 480 / 390
Ratio = 1.23
Therefore, the ratio of his monthly salary to his expenditure is 1.23:1.