If the hour hand on a clock moves 1/60th of a degree every minute then how many degrees will the hour hand move in one hour?

To solve this question, the user needs to know the number of minutes in an hour and the angle moved by the hour hand in one minute.

The hour hand of a clock completes one full revolution of 360 degrees in 12 hours, or 720 minutes. Thus, in one minute, the hour hand moves 360/720 = 1/2 of a degree.

To find the answer, we need to multiply the number of degrees moved by the hour hand in one minute by the number of minutes in an hour:

1/2 * 60 = 30

Therefore, the hour hand on the clock moves 30 degrees in one hour.

Now let's go through each option and explain why it is right or wrong:

A. 360 degrees: This option is incorrect. The hour hand of a clock does not move 360 degrees in one hour, as it only completes 1/12th of a revolution.

B. 60 degrees: This option is incorrect. The minute hand of a clock moves 60 degrees in one hour, but the hour hand moves much less.

C. 1 degree: This option is incorrect. The hour hand moves much more than 1 degree in one hour.

D. 120 degrees: This option is incorrect. The hour hand moves 30 degrees in one hour, not 120 degrees.

Therefore, The Answer is: C. 1 degree.