SOLUTION: A pawnbroker loans Elisa #270. Seven days later, Elisa gets her bicycle back by paying the pawnbroker $289.50. What annual simple interest rate did the pawnbroker charge Elisa?

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Question 1138010: A pawnbroker loans Elisa #270. Seven days later, Elisa gets her bicycle back by paying the pawnbroker $289.50. What annual simple interest rate did the pawnbroker charge Elisa?
Answer by VFBundy(438)   (Show Source): You can put this solution on YOUR website!
Interest = Principal * Rate * Time (in years)

19.50 = 270(r)(7/365)

19.50 = (1890/365)r

r = 3.77

This means the interest rate was 377%.

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