SOLUTION: two cars started from the same point and traveled in a straight path for exactly 2 hrs , at which time they were 208 miles apart. If one car travelled on an average of 8 miles per

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Question 1021612: two cars started from the same point and traveled in a straight path for exactly 2 hrs , at which time they were 208 miles apart. If one car travelled on an average of 8 miles per hr faster than the other , then what is the average speed of both the cars.
Found 2 solutions by Alan3354, fractalier:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
You have to specify directions of the cars.

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
If they travel in the opposite direction (the only way this problem really makes sense at this level), then in two hours they cover 208 miles. Thus, their rates are a combined 104 miles per hour.
Call the slower car's rate, r.
The faster will be r+8.
Then we have
r + r+8 = 104
2r + 8 = 104
2r = 96
r = 48 mph (slower car)
r+8 = 56 mph (faster car)