A man walks up a mountain at the rate of 2 km an hour and down by a way 6 km longer at the rate of 7/2 km an hour. He is out eight hours altogether. How far has he walked?
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Answered by
8
Answer:
Step-by-step explanation:Let the way up be x km
Time taken to climb up = x/2 hours.
The way down = (x+6)km
Time taken to climb down =(x+6)/(7/2)= 2(x+6)/7
Therefore the total time of the journey = (x/2)+{2(x+6)/7}=8
solve x = 8
Total distance = x+x+6 = 22km.
Answered by
0
Answer:
Let the way up be x km
Time taken to climb up = x/2 hours.
The way down = (x+6)km
Time taken to climb down =(x+6)/(7/2)= 2(x+6)/7
Therefore the total time of the journey = (x/2)+{2(x+6)/7}=8
solve x = 8
Total distance = x+x+6 = 22km.
Step-by-step explanation:
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