एक पूरे दिन (24 घंटे) में घड़ी की सुइयां कितनी बार एक दूसरे के संपाती (Coincide) होती हैं?

What is the smaller angle measured between the two hands (hour hand and minute hand) of a clock at 10:00 o'clock?

At exactly 3:00 o'clock, what is the angle formed between the two hands (hour hand and minute hand) of a clock?