The reflex angle between the hands of a clock at 10:20 is:

Question: The reflex angle between the hands of a clock at 10:20 is:

Solution:
Required angle = |(11 M - 60 H)/2|°
= |(11 × 20 - 60 × 10)/2|°
= |(220 - 600)/2|°
= |- 380/2|°
= 190°

So, the reflex angle between the hands of a clock at 10:20 is 190°.