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In the series6 4 1 2 2 8 7 4 2 1 5 3 8 6 2 1 7 1 4 1 3 2 8 6How many pairs of alternate numbers have a difference of 2?
Question

In the series

6 4 1 2 2 8 7 4 2 1 5 3 8 6 2 1 7 1 4 1 3 2 8 6

How many pairs of alternate numbers have a difference of 2?

A.

2

B.

4

C.

6

D.

8

Correct option is A

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