选择题
1999 AMC 8 Problem 7: Service Center Milepost
The third exit on a highway is located at milepost 40 and the tenth exit is at milepost 160. There is a service center located three-fourths of the way from the third exit to the tenth exit. At what milepost would you expect to find this service center?
A.
90
B.
100
C.
110
D.
120
E.
130