Six People- A, B, C, D, E, F and G
1) All are facing south.
2) G is sitting third to the right of C who is sitting fifth to the left of D.
3) C is not sitting at any of the extreme ends.
4) A is sitting second to the left of B.
5) F is sitting second to the right of E who is not an immediate neighbour of B.Thus, case 2 gets eliminated.
Hence, the statement ‘A is sitting between D and G’ is not true