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 option.
A) 5 years  B) 6 years  C) 7 years  D) 12 years  E) 15 years
Time = (100 * 81) / (360 * 4.5)= 
<gadget id="calculator">(100 * 81) / (360 * 4.5)</gadget>
<output>5</output>
5 years   5 yearsNSWER:5 years
<result>A</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?