1.

How many times hands of a clock coincide in a day -(A) 10(B) 22(C) 11(D) 24

Answer»

option B

The hands of a clock coincide11 timesin every 12 hours (Since between 11 and 1, they coincide onlyonce, i.e., at 12 o'clock). The hands overlap about every 65 minutes, not every 60 minutes. The hands coincide22 timesin a day.

(B) 22 times.

At 12:00 am since between 11:00 and 1:00--> 1 time

few min. after 1 am, 2 am,...upto 10am. --> 10 times

Total 11 times similarly 11 times in on

so, total 22



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