Problema Solution
Jerry spent 2.5 h biking up Mount Lowe, rested at the top for 30 min, and biked down in 1.5 h. How far did he bike if his rate of ascent was 3 km/h less than his rate of descent?
Answer provided by our tutors
Rate of ascent: x-3
Rate of descent: x
Distance = rate*time
2.5(x-3)=1.5(x)
Solve for x = 7.5 km/h
Total distance up = 11.25
Total distance going down:11.25
Total distance altogether: 22.5