SOLUTION: A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a winding road. The time spent on the winding road was 4 hours. Find the

Question 988144: A bus traveled on a level road for 3 hours at an average speed 20 miles per hour faster than it traveled on a winding road. The time spent on the winding road was 4 hours. Find the average speed on the level road if the entire trip was 188 miles.
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!

                rate      time    distance
LEVEL           r+20      3       
WINDING          r        4       
total                             188

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