Reading Comprehension

Study the following information carefully and answer the questions given below:
Nine persons A, B, C, D, E, F, G, H and I sit in a row facing north but not necessarily in the same order.
C sits 3rd to the left of F. Two persons sit between E and F. A sits 3rd to the right of I but not sit at any end. There are as many persons sit to the left of A as right of B. F sits adjacent to A. The numbers of persons sit between D and G is thrice than the numbers of persons sit between H and G.