The average speed of one airplane is 200 mph faster than that of an automobile. If the automobile starts at 3 a.m. and the airplane starts from the same place at 11 a.m., they will have traveled the same number of miles by 1:00 p.m.

If r represents the rate of the automobile, how many miles does the plane travel?

A.200r
B.2(200 + r)
C.10r

Question

The average speed of one airplane is 200 mph faster than that of an automobile. If the automobile starts at 3 a.m. and the airplane starts from the same place at 11 a.m., they will have traveled the same number of miles by 1:00 p.m.

If r represents the rate of the automobile, how many miles does the plane travel?


A.200r
B.2(200 + r)
C.10r

anonymous · Answer

r = rate of auto
r+200 = rate of plane
11:00 to 1:pm = 2 hours
can you solve it from that?

anonymous · Answer

(rate of auto +200) * number of hours traveled