Question

Question 4 (b)

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

Answer 1

Three out of 4 parts.
In order to face towards the east after turning clockwise from facing towards the south, one must turn $\frac{3}{4}$th of a full revolution. A full revolution, in this case, will be four ${90}^{\circ }$ rotations in the clockwise direction.