What is the ratio of the total sales of branch B2 for both years to the total sales branch B4 for both years?
What is the ratio of the total sales of branch B2 for both years to the total sales branch B4 for both years? Correct Answer 7 : 9
Required ratio$$=\frac{\text{Total sales of branch B2 for both years}}{\text{Total sales of branch B4 for both years}}$$
$$\eqalign{& = \frac{75+65}{85+95} \cr& = \frac{140}{180} \cr& = \frac{7}{9} \cr& = 7:9 \cr} $$

