SOLUTION: A man has 2 hours to disposal. If he travels 2okm per hour at two hours and return back by walking at the rate of 5km per hour. How far he travels?

Question 963138: A man has 2 hours to disposal. If he travels 2okm per hour at two hours and return back by walking at the rate of 5km per hour. How far he travels?

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A man has 2 hours to disposal.
If he travels 2okm per hour at two hours and return back by walking at the rate of 5km per hour.
How far he travels?
:
let d = the one way distance
:
Write a time equation; time = dist/speed
:
Time out + time back = 2hrs
+ = 2
multiply equation by 20, cancel the denominators
d + 4d = 20(2)
5d = 40
d = 40/5
d = 8 * 2 = 16 km traveled
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