Answers

2015-01-06T22:23:05+08:00
Derive the formula: Interest = Principal x Rate x Time

Rate = Interest
          Principal x Time

Rate = 202.50
         5,400 x 6/12
       = 202.50
         2,700
       = 0.075 ( move two places to the right to get the percent or simply to say times it into 100 to get the percent )
       = 7.50 %

Hope it helps.

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