Seema took a loan of 1800 with simple interest for as many years as the rate of interest. If she paid 162 as interest at the end of the loan period, what was the rate of interest?
Options
A) 4  B) 3  C) 5  D) Can not be determined  E) None
Explanation: Let rate = R% and time = R years.   Then, (1800 x R x R)/100 = 162   18RÂ² = 162   RÂ² = 9   R = 3.   Answer: 3
<result>B</result>
Seema took a loan of 1800 with simple interest for as many years as the rate of interest. If she paid 162 as interest at the end of the loan period, what was the rate of interest?