Question

How many times do the hands of a clock coincide in a day?
1. 24
2. 20
3. 21
4. 22

Answer 1

Correct Answer - Option 4 : 22

Hands of clock coincides 11 times in 12 hours.( Also, hour hand and minute hand coincides every 65 minutes)

Therefore, in 24 hours they will coincide 22 times. 

Also, 24 ×  60 = 1440 minutes. 

As, hour hand and minute hand coincides every 65 minutes 

1440 ÷ 65 = 22.15

Hence, 22 is the correct answer.