<PRE><B>Question 973892</B>
A group of campers and one group leader left a campsite in a canoe. They traveled at an average rate of 10 km/h. Two hours later the other group leader left the campsite in a motorboat. He traveled at an average rate of 22 km/h how long after the canoe left the campsite did the motorboat catch up with it ?
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let x=travel time of group with motorboat
x+2=travel time of group with canoe
speed*travel time=distance(same for both groups)
22x=10(x+2)
22x=10x+20
12x=20
x=20/12=5/3=1 2/3 hr
x+2=2 2/3 hr
How long after the canoe left the campsite did the motorboat catch up with it ? 2 2/3 hr</PRE>