A Sum of Rs. 10,500 amounts to Rs. 13,825 in $$3\frac{4}{5}$$ years at a certain rate percent per annum simple interest. What will be the simple interest on the same sum for 5 years at double the earlier rate?

A. Rs. 450 B. Rs. 524 C. Rs. 600 D. Rs. 624

A. Rs. 1380 B. Rs. 1290 C. Rs. 1470 D. Rs.1200 E. Rs. 1240

A. 8% B. 9% C. 10% D. 11% E. 12%

A. Rs. 2300 B. Rs. 2315.25 C. Rs. 2310 D. Rs. 2320 E. None of these