Medium
How many '6' are there in the following sequence which are followed by no. '3' and preceded by no. '8'? 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 2 3 5
Explanation
Explanation
Checking every '6' in the sequence for an '8' immediately before it and a '3' immediately after it: the pattern '8,6,3' occurs only twice in the sequence, so the answer is 2.
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