The simple interest on a sum of money will be Rs.400 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 most appropriate option
A) 2261	B) 2888	C) 1200	D) 800	E) 2771
P --- 10 ---- 400   P --- 5 ----- 200   3P --- 5 ----- 600   ------   =&gt; 800   Answer: 800
<result>D</result>
The simple interest on a sum of money will be Rs.400 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year?