Question

Four persons are stationed at the four corners of a square piece of a plot.

From the original position, B and D move one and a half length of sides clockwise and anti-clockwise respectively. Which one of the following statements is true ?

• A. B and D are both at the mid point between A and C.
• B. B is at the midpoint between A and C, and D is at the corner originally occupied by A.
• C. D is at the midpoint between A and C, and B is at the corner originally occupied by C.
• D. B and D are both at the midpoint between A and D.

Answer 1

The correct option is A B and D are both at the mid point between A and C.

The final position of B and D is shown in the figure.
So, $A$ is the answer.