Question
How many times are the hour and the minute hands of a
clock at a right angle in a period of two days?Solution
The hour and minute hands of a clock form a right angle (90°) twice every hour: Once when they are 90° apart clockwise Once when they are 90° apart counter-clockwise
In 1 hour ⇒ 2 right angles In 12 hours ⇒ 12×2=24 times In 24 hours (1 day) ⇒ 24×2=48 times In 2 days ⇒ 48×2=96 times
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