How many 8's are there in the following sequence which are preceded by 6 and followed by 9?
9 4 8 6 3 2 7 1 8 6 8 9 8 1 3 6 8 9 7 8 6 3 1 3 6 8 4 3 6 3 9
1
2
2
3
3
4
4
7
How many 8's are there in the following sequence which are preceded by 6 and followed by 9?
9 4 8 6 3 2 7 1 8 6 8 9 8 1 3 6 8 9 7 8 6 3 1 3 6 8 4 3 6 3 9