The simple interest on a sum of money will be Rs.1000 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year?
Choose the correct option
A) 8981 B) 3799 C) 1200 D) 2693 E) 2000
P --- 10 ---- 1000   P --- 5 ----- 500   3P --- 5 ----- 1500   ------   =&gt; 2000   Answer: 2000
<result>E</result>
The simple interest on a sum of money will be Rs.1000 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year?