How many such 6 are there in the following number series which are immediately preceded by 5 but not followed by 7?
5 6 7 2 5 6 4 9 2 5 6 5 6 3 5 6 8 6 4 9 5 6 7
1
1
2
2
3
3
4
4
How many such 6 are there in the following number series which are immediately preceded by 5 but not followed by 7?
5 6 7 2 5 6 4 9 2 5 6 5 6 3 5 6 8 6 4 9 5 6 7