Multiple choice

An accurate clock shows $8$ o'clock in the morning. Through how many degrees will the hour hand rotate when the clock shows $2$ o'clock in the afternoon?

  1. $144^o$
  2. $150^o$
  3. $168^o$
  4. $180^o$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

From 8 AM to 2 PM is 6 hours. The hour hand moves 360 degrees in 12 hours, so it moves 30 degrees per hour. 6 hours * 30 degrees/hour = 180 degrees.

AI explanation

Using the degrees per hour method, the hour hand completes a full circle of 360 degrees in 12 hours, meaning it moves at 30 degrees per hour. The time elapsed from 8 o'clock in the morning to 2 o'clock in the afternoon is exactly 6 hours. Multiplying 6 hours by 30 degrees gives a total rotation of 180 degrees.