Question

What part of a revolution have you turned through if you stand facing west and turn clockwise to face east?

• A. Two out of four parts.
• B. Two out of three parts.
• C. Three out of four parts.
• D. None of the above.

Answer 1

The correct option is A Two out of four parts.

Two out of four parts.
In order to face towards the east after turning clockwise from facing towards the west, one must turn $\frac{2}{4}$th or $\frac{1}{2}$ of a full revolution. A full revolution, in this case, will be four ${90}^{\circ }$ rotations in the clockwise direction. One ${90}^{\circ }$ rotation will be towards north and another will be towards the east.