How many times in a day the hands of a clock are straight?
Choose the correct choice from the following answers:	A) 21	B) 27	C) 24	D) 22	E) 25
In 12 hours, the hands coincide or are in oppesite direction 22 times.   In 24 hours, they are at right angles 22 times.   Answer is 22.
<result>D</result>
How many times in a day the hands of a clock are straight?