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1 . An accurate clock show 8 O'clock in the morning. Since then , how many degrees will the hour-hand rotate when clock shows 2 O, clock in the afternoon?

A. 90 degree
B. 150 degree
C. 180 degree
D. 270 degree
D. None of these

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Answer: Option C

Explanation:

An accurate clock has 12 hours on its face, and the hour hand completes one full rotation (360 degrees) in 12 hours.

From 8 o'clock in the morning to 2 o'clock in the afternoon, there are 6 hours.

To find how many degrees the hour hand will rotate in 6 hours, you can use the following formula:

Degrees rotated = (Hours elapsed / Total hours on the clock) * 360 degrees

Degrees rotated = (6 hours / 12 hours) * 360 degrees

Degrees rotated = (1/2) * 360 degrees

Degrees rotated = 180 degrees

So, the hour hand will rotate 180 degrees from 8 o'clock in the morning to 2 o'clock in the afternoon.

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