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 choice from the following choices.
A) 8981	B) 3799	C) 1200	D) 2693	E) 1732

Rationale: "p - - - 10 - - - - 600 p - - - 5 - - - - - 300 3 p - - - 5 - - - - - 900 - - - - - - = > 1200 answer : c"
Answer: C