SOLUTION: A long distance runner does a first lap around a track in exactly 50 seconds. As she tires, each subsequent lap takes 20% longer than the previous one. How long does she take to ru

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Question 1030659: A long distance runner does a first lap around a track in exactly 50 seconds. As she tires, each subsequent lap takes 20% longer than the previous one. How long does she take to run 3 laps?
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
First lap: 50 seconds
2nd lap: 50 x 1.2 seconds=60 seconds
3rd lap: 60 x 1.2 seconds=72 seconds
Total time:50+60+72 secs=182 seconds!!!!!!