Multiple choice

How many times are the hands of a clock at right angle in a day?

  1. 24

  2. 16

  3. 44

  4. 48

  5. 22
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is clear that both hands of a clock are at right angle twice in every hour, except at 3'o clock and 9'o clock. At 3'o clock and 9'o clock, the positions are identical. So, they are at right angle 22 times in 12 hours. Thus, in 24 hours they are 22 x 2 = 44 times at right angle.

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