Question 681904
A mountaineer needs 5 hours to go over a mountain. The length of the path is 15km. His uphill speed is 1.5km/h, where his downhill speed is 4km/h. How much time does he need to finish the uphill and downhill path respectively?
------------
d = r*t
t = d/r
15 km/1.5 km/hr = 10 hours
Not gonna do in 5 hours.