Multiple choice

The reflex angle between the hands of a clock at 10:2: 5 is?

  1. 180°

  2. 1921.2°

  3. 195°

  4. 1971 2°

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

At 10:25, the hour hand is at 10 + 25/60 = 10.4166 hours. Angle = |30H - 5.5M| = |30*10 - 5.5*25| = |300 - 137.5| = 162.5 degrees. The reflex angle is 360 - 162.5 = 197.5 degrees.

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