The ratio of buses to cars on River Road is 1 to 3. If there are 40 fewer buses than cars on River Road, how many cars are on River Road?  Choose the correct choice from the following options:
A) 60
B) 75
C) 85
D) 95
E) 105
B/C=1/3   C-B=40.........&gt; B=C-40   (C-40)/C=1/3   Testing answers. Clearly Eliminate BCDE   Put C=60.........&gt; (60-40)/60=20/60=1/3   60nswer: 60
<result>A</result>
The ratio of buses to cars on River Road is 1 to 3. If there are 40 fewer buses than cars on River Road, how many cars are on River Road?