Question

How many pairs of alternate numbers have a difference of 2 in the given 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

Options

• 1

• 2

• 3

• 4

Answer 1

2
Explanation:
There are two such pairs.