Anil invested a sum of money at a certain rate of simple interest for a period of five years. Had he invested the sum for a period of eight years for the same rate, the total intrest earned by him would have been sixty percent more than the earlier interest amount. Find the rate of interest p.a.  Choose the correct choice from the following answers:	A) 5352	B) 5355	C) 2789	D) 2689	E) 2688
Let the sum lent by Manoj to Ramu be Rs.P.   Amount gained by Manoj = P. 3.9 /100 = 3450.3.6/100   = Rs.824.85   27P = 62100   = 82485   P = (82485 + 62100)/27 = 3055 + 2300   = Rs.5355   Answer: 5355
<result>B</result>
Anil invested a sum of money at a certain rate of simple interest for a period of five years. Had he invested the sum for a period of eight years for the same rate, the total intrest earned by him would have been sixty percent more than the earlier interest amount. Find the rate of interest p.a.