Two cars are 140 miles apart and travel towards each other along the same road. They meet in two hours. One car travels 4mph faster than the other car

Question

What is the average speed of each car?

Answer 1

distance=rate*time

140=r*2+(r+4)*2

140=2r+2r+8

140=4r+8

140-8=4r

132=4r

r=132/4

r=33 mph

r+4=37 mph