SOLUTION: In a 10 kilometer race, Bill ran 12 kilometers per hour while Leo ran 10 kilometers per hour. How long did it take for them to be 2/3 of a kilometer apart?

Question 275106: In a 10 kilometer race, Bill ran 12 kilometers per hour while Leo ran 10 kilometers per hour. How long did it take for them to be 2/3 of a kilometer apart?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Bill is pulling ahead of Leo at the rate of
km/hr
The problem doesn't change if you think
of Leo as being stationary and Bill moving
at km/hr. Now how long does it take
Bill to get km from Leo?

hr
hr
In 20 min, they will be km apart
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