How much time will take for an amount of Rs. 360 to yield Rs. 81 as interest at 4.5% per annum of simple interest? Choose the correct choice from the following:  A) 8 years  B) 4 years  C) 3 years  D) 9 years  E) 5 years
Time = (100 * 81) / (360 * 4.5)= 
<gadget id="calculator">(100 * 81) / (360 * 4.5)</gadget>
<output>5</output>
5 years   Answer: 5 years
<result>E</result>
How much time will take for an amount of Rs. 360 to yield Rs. 81 as interest at 4.5% per annum of simple interest?