Reena took a loan of 1300 with simple interest for as many years as the rate of interest. If she paid 325 as interest at the end of the loan period, what was the rate of interest?
Pick one.
A) 3.6 B) 5 C) 25 D) Cannot be determined E) None
Explanation: Let rate = R% and time = R years.   Then, (1300 x R x R)/100 = 325   13RÂ² = 325   RÂ² = 25   R = 5.   Answer: Option 5
<result>B</result>
Reena took a loan of 1300 with simple interest for as many years as the rate of interest. If she paid 325 as interest at the end of the loan period, what was the rate of interest?