How many 3s are there in the following number | vedclass

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(B) To find the number of $3$s that are immediately preceded by $6$ but not immediately followed by $7$,we examine the sequence:$2, 3, 7, 4, 3, 5, 6,

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Two

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(B) To find the number of $3$s that are immediately preceded by $6$ but not immediately followed by $7$,we examine the sequence:$2, 3, 7, 4, 3, 5, 6, 3, 7, 4, 6, 3, 8, 9, 6, 5, 1, 8, 3, 7, 2, 4, 2, 8, 6, 3, 9$$1$. Look for the pattern $6, 3, X$ where $X 
eq 7$.$2$. In the sequence,we identify the occurrences of $6, 3$:- $6, 3, 7$ (This does not count because it is followed by $7$)- $6, 3, 8$ (This counts because it is followed by $8$)- $6, 3, 9$ (This counts because it is followed by $9$)Thus,there are $2$ such $3$s.

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

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