question_answer

Peterson invested certain sum of money 9 years ago. He puts his money at the rate of 4% for first 2 years, 6% per annum for the next 4 years and 8% per annum for the period beyond 6 years. If at the end of the period he gets the simple interest as Rs. 1120, then his principal sum was:

A) Rs. 2000

B)        Rs. 2500      

C) Rs. 3000           

D) Rs. 3500

E) None of these