SOLUTION: Lisa left camp on her bicycle at noon and rode at an average rate of 10 miles per hour. Morton left camp in his van at 1:30 p.m. and over took Lisa in 30 minutes. At what average r

Question 209126: Lisa left camp on her bicycle at noon and rode at an average rate of 10 miles per hour. Morton left camp in his van at 1:30 p.m. and over took Lisa in 30 minutes. At what average rate was he traveling in the van?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Lisa left camp on her bicycle at noon and rode at an average rate of 10 miles per hour. Morton left camp in his van at 1:30 p.m. and over took Lisa in 30 minutes. At what average rate was he traveling in the van?
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Morton overtook Lisa 2 hours after she left (1:30 + 1/2 hour).
At 10 mph, Lisa traveled 20 miles.
Morton traveled 20 miles in 1/2 hour --> 40 mph.
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