How many times in a day the hands of a clock are straight?  Choose the correct choice.
A) 12
B) 322
C) 87
D) 22
E) 771
In 12 hours, the hands coincide or are in oppesite direction 22 times.   In 24 hours, they are at right angles 22 times.   Answer: Option '22'
<result>D</result>
How many times in a day the hands of a clock are straight?