The simple interest on a sum of money will be Rs.600 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 answer:
A) 1277	B) 2977	C) 1200	D) 2769	E) 1971
P --- 10 ---- 600   P --- 5 ----- 300   3P --- 5 ----- 900   ------   =&gt; 1200   Answer: 1200
<result>C</result>
The simple interest on a sum of money will be Rs.600 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year?