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

Question 1022553: A bus traveling on a level road for 3 hrs at an average speed 20 mph faster than it traveled on a winding road. The time spent on the winding road was 4 hrs. Find the average speed on the level road if the entire trip was 305 miles.
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
Travel rates rule is RT=D relating rate, time, distance.

Variable assignments are implied in this table.

              rate         time         distance
Level          r+20         3
Winding        r            4
TOTAL                                     305

Fill what distance information is missing and then form the necessary equation to solve.

---
r=35
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