Q6. 
How many times will minute hand and hour hand coincide in one day? 
A.  21 

B.  22 

C.  23 

D.  24 
Q7. 
How many times will minute hand and hour hand perpendicular in one day? 
A.  22 

B.  23 

C.  24 

D.  44 
Q8. 
How many times will minute hand and hour hand opposite in one day? 
A.  22 

B.  22 

C.  23 

D.  24 