Question

From the original position given in the above figure. A and B move one arm length clockwise and then cross over to the corner diagonally opposite ; C and D move one arm length anti-clockwise and cross over the corner diagonally opposite. The original configuration ADBC has now changed to​

Answer 1

Answer

The original configuration ADBC has now changed to CBDA.

Explanation step by step

The original and final positions of A, B, C and D are indicated in diagrams (i) and (ii), respectively.

The final positions of A, B, C and D are marked as A

∗

B

∗

C

∗

D

∗

. From diagram (ii), we observe that the original configuration ADBC has been changed to CBDA.