The cost to rent a small bus for a trip is x dollars, which is to be shared equally among the people taking the trip. If 5 people take the trip rather than 15, how many more dollars, in terms of x, will it cost per person?  Select
A) x/6  B) x/16  C) x/40  D) 3x/40  E) 3x/22
Just plugging in values   X= 75   Cost per person if we consider 5 = 15   Cost per person if we consider 15 = 5   Difference between costs is 10 dollars.   Plugging in the value of x into the answer choices, let's see which one yields a result of 10. And that is 3x/22.
<result>E</result>
The cost to rent a small bus for a trip is x dollars, which is to be shared equally among the people taking the trip. If 5 people take the trip rather than 15, how many more dollars, in terms of x, will it cost per person?