Multiple choice

Where will the hour hand of a clock stop if it starts from 10 and turns 3 right angles?

  1. 7

  2. 6

  3. 5

  4. 9
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A Correct answer
Explanation

One right angle is 3 hours on a clock face. Three right angles equal 9 hours. Starting at 10, moving 9 hours clockwise (10 + 9 = 19) corresponds to 19 - 12 = 7.

AI explanation

Turning one right angle moves the hand a quarter of the clock face, which equals 3 hours. Starting from 10, moving three right angles means moving forward by 9 hours, so we add 10 and 9 to get 19. On a 12-hour clock face, 19 modulo 12 is 7, meaning the hand stops at 7.

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