Question

The distance between troy city and Ben city is 315 miles. How far apart are they on the map. 2 in: 35 miles

Answer 1

$315 \div 35 = 9 \\ 9 \times 2 = 18$
18 inches

Answer 2

$\\ \text{The distance between troy city and Ben city is 315 miles. }\\ \text{And on the map the ratio of distance is, 2 in: 35 miles}\\ \\ \text{Let the distance between the cities in map is x.}\\ \text{We use ratio to solve this problem. so we have}\\ \\ \frac{x}{315}=\frac{2}{35}\\ \\ \text{on cross multiplying, we get}\\ \\ x=\frac{2\times 315}{35}\\ \\ \Rightarrow x=\frac{630}{35}\\ \\ \Rightarrow x=18$

Hence, on the map, the distance between the cities is: 18 in.