This station clock has no numbers; only the 12, 3, 6 and 9 positions carry bold marks. Both hands point exactly at minute marks. What is the smaller angle between the hands?

The minute hand is a third of the way from the 3-mark to the 6-mark: 20 minutes. The hour hand is just past the 7 position, so the time is 7:20. Hour hand $30\times 7+\frac{20}{2}=220^{\circ }$, minute hand $6\times 20=120^{\circ }$: the angle is $100^{\circ }$. (90° forgets that the hour hand has moved past 7.)