Question 51

Two hands of an ordinary clock lie exactly over one another how many times in a continuous period of 72 hours ?

In a clock, the hour hand and minute hand coincide 11 times in 12 hours.

Number of 12-hour cycles in 72 hours: 72 ÷ 12 = 6

Total coincidences = 6 × 11 = 66 times.

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