A mountain road, from the bottom of the mountain to the top of the mountain, is 1km short of walking for 1 hours, and it can be completed in 51 minutes from the top of the mountain to the bottom of th
A mountain road, from the bottom of the mountain to the top of the mountain, is 1km short of walking for 1 hours, and it can be completed in 51 minutes from the top of the mountain to the bottom of the mountain. It is known that the downhill speed is 1.5 times of the uphill speed.
if the uphill speed is x km/h, the downhill speed is 1.5X km/h,
distance: (X+1) km,
∴X+1=51/61*1.5X,
6x+6 = 7.5x
1.5x = 6.