How many times do the hands of a clock overlap each other in a day?
Explanation:
Hands of a clock overlap once every hour except between 11 and 1 O’clock when they overlap only once in these 2 hours (at 12 O'clock).
∴ The hands of a clock overlap 11 times in every 12 hours.
∴ So, in a day the hands overlap 22 times.
Hence, option (d).
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