Question 29372
Level road speed = x+20
Winding road speed = x
Total  milies driven = 305
Equation:


3(x+20)+4(x)=305
3x+60+4x=305
7x=245
x=35


35+20=55


Hence, on the level road the bus at 55mph and on the winding road the bus traveld at 35mph.
Paul.