How many times do the hands of a clock coincide in a day?

விடையைக் காட்டு & விளக்கம்

விடை: (D) 22

விளக்கம்

The minute hand gains 360° on the hour hand every 12/11 hours, so they meet 11 times per 12 hours.

(A) தவறு
Wrong: they coincide 11 times every 12 hours, so 22 in a day.
(B) தவறு
Wrong: that is roughly per 12 hours, and even then it is 11.
(C) தவறு
Wrong: the 11–1 o'clock coincidence is shared, so it is 22.
(D) சரி
Correct: the hands meet 11 times in 12 hours, i.e. 22 times in 24 hours.