English

From the Original Position Given in the Figure Above, a and B Moves One Arm Length Clockwise and Cross Over to the Diagonally Opposite Corners. C and D Move One Arm Length Anti-clockwise and Cross

Question

This question is based on the following diagram showing four persons stationed at the four corners of a square piece of a plot as shown therein

From the original position given in the figure above, A and B moves one arm length clockwise and cross over to the diagonally opposite corners. C and D move one arm length anti-clockwise and cross over the diagonally opposite corners. The original configuration A, D, B, C has now changed to