A sum of Rs.16,000 is divided between Rahul and Vinod. Rahul invested his sum at 7.5% p.a. for 4 years at simple interest, and Vinod invested his sum at 12% p.a. for 4 years at simple interest. If the total interest received by Rahul and Vinod together is Rs.6,024, then the sum invested by Rahul is:

Options

A. Rs. 8,200
B. Rs.9,200
C. Rs.8,400
D. Rs. 9,500