SOLUTION: Troy and Toledo are 64 mi apart. A bus left Troy to Toledo at an average speed of 84 mph. At the same time, a car left Toledo to troy. The two vehicles passed each other 20 minutes

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Question 1103287: Troy and Toledo are 64 mi apart. A bus left Troy to Toledo at an average speed of 84 mph. At the same time, a car left Toledo to troy. The two vehicles passed each other 20 minutes after they started. What was the average speed of the car?
Found 2 solutions by josgarithmetic, richwmiller:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
The two vehicles closed 64 miles in 20 minutes, one-third of an hour.

r, speed of car.
Approach rate of car and bus, r%2B84.

%28r%2B84%29%281%2F3%29=64

r=3%2A64-84

highlight%28r=108%29

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Troy and Toledo are 64 mi apart. A bus left Troy to Toledo at an average speed of 84 mph. At the same time, a car left Toledo to troy. The two vehicles passed each other 20 minutes after they started. What was the average speed of the car?
1/3*84 mph=28 miles for the bus
64-28=36 miles for the car
r*t=d
r*1/3=36
r/3=36
r=36*3=108 mph
Those are absurd speeds. Busses don't travel that fast and cars attempting to go that fast end up in accidents.