1.

In this series 6, 4, 1,2,2,8, 7,4,2,1,5,3,8,6,2,2,7,1,4,1,3,5,8,6.How many pairs of successive numbers have a difference of 2 each?

A. 4
B. 5
C. 6
D. 8
Answer» D. 8


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