Question

The ratio of the income to the expenditure of a family is 7 : 6. Find the savings if the income is Rs 1400.

Answer 1

The ratio of the income of a family to its expenditure = 7 : 6.
Let us assume that the income and expenditure of the family are '7x' and '6x', respectively.
But the income = Rs. 1400.
Therefore, 7x = 1400
x = $\frac{1400}{7}$ = 200
The expenditure = 6x = 6 $\times$ 200 = Rs. 1200.
Now, savings = Income - expenditure = Rs. (1400 - 1200) = Rs. 200.