Directions: Study the information given below carefully and answer the questions that follow.

There are 10 persons A, B, C, D, E, F, G, H, I and J in a family. A is 10 km north of B. E is 16 km south of F. G is 8 km east of F and 6 km north of H. I is situated just in middle of E and D while J is situated in middle of F and E. D is 10 km north of C. E is 8 km west of D. C is 20 km east of B.