In a span of 24 hours, how many times would the two hands of a clock point exactly in opposite directions ? Choose the correct choice from the following answers:
A) 10  B) 11  C) 23  D) 22  E) 24
Explanation:   In every hour, the two hands (minute and hour) of the clock would be exactly opposite to each other once. But, from 5 o'clock to 6 o'clock and from 6 o'clock to 7 o'clock (a span of hours), they would be exactly opposite only once (at exact 6 o'clock).   Thus, during the span of 12 hours, the two hands would be exactly opposite 11 times. Hence, in the span of 24 hours they would be exactly opposite 22 times.   ANSWER 22
<result>D</result>
In a span of 24 hours, how many times would the two hands of a clock point exactly in opposite directions ?