Question 1190416
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i = 11,200 - 10,500 = 700 is the amount of interest


P = 10500 is the amount loaned


t = 6 months = 6/12 = 0.5 year is the time value


Simple interest formula
i = P*r*t
700 = 10500*r*0.5
700 = 10500*0.5*r
700 = 5250*r
r = 700/5250
r = 0.1333


Answer: Roughly 13.33%
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