How much time will take for an amount of Rs. 320 to yield Rs. 81 as interest at 4.5% per annum of simple interest?  Choices
A) 5 5/8 years B) 6 5/8 years C) 7 5/8 years D) 12 5/8 years E) 15 5/8 years
Time = (100 * 81) / (320 * 4.5) = 5 5/8years   5 5/8 yearsNSWER:5 5/8 years
<result>A</result>
How much time will take for an amount of Rs. 320 to yield Rs. 81 as interest at 4.5% per annum of simple interest?