SOLUTION: 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 fin

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?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
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.
RELATED QUESTIONS
The distance between towns A to B is equal to 48 km. The road connecting A and B is not... (answered by TimothyLamb)

A man walks at 5km/h for 6 hours and 4km/h for 12 hours, what is his average... (answered by josgarithmetic)

a man walks from his home at a speed of 5km/h and returns at a speed of 3km/h what is the (answered by ankor@dixie-net.com)

a biker can travel at a speed of x km/h over a distance of 15km. if the biker reduces his (answered by mananth)

Arif walks for x hours at 5km/h and runs for y hours at 10km/h. He travels a total of... (answered by Alan3354,jessica43)

A bicyclist rides his bicycle 20 miles up a hill and then comes back down. His speed... (answered by jorel1380)

A bicyclist rides his bicycle 12 miles up a hill and then comes back down. His speed... (answered by ikleyn)

Brendan enjoys mountain biking. He has found that the maximum gradient up which he can... (answered by Theo)

a man walks x km uphill at 3km/h and walks the same distance back at 6km/h. What is his... (answered by Alan3354,richwmiller)