1.

How many 5's are there which are followed by 0 and preceded by 0 in the series? 1 5 7 0 5 0 7 0 0 5 1 2 5 1 5 0 5 0 0 5 0

A.  1                            
B.                         3            
C.                         4                            
D.                         5
Answer» C.                         4                            


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