Finding the ratio of salary to expenditure :
Given,
Monthly salary=Rs 12,000
Monthly expenditure=Rs 8,500
The ratio of salary to expenditure = salary of the person
Expenditure=120008500=12085
Now, above ratio can be converted to its simplest form by dividing numerator and denominator by 5, we get
120÷585÷5=2417=24:17
Therefore, the ratio of salary to expenditure is 24:17.