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  1. The number of times in a day the hour hand and the minute hand of a clock are at right angles, is ?
    1. 44
    2. 48
    3. 24
    4. 12
Correct Option: B

In every hour the hand of clock are right angles 2 times, so in a days i.e., 24 h they will be at right angle 48 times.


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