How many 5s are there in the following number sequences which are immediately followed by 3 but do not immediately preceded by 7?     8 9 5 3 2 5 3 8 5 5 6 8 7 3 3 5 7 7 5 3 6 5 3 3 5 7 3 8

3

8 9 5 3 2 5 3 8 5 5 6 8 7 3 3 5 7 7 5 3 6 5 3 3 5 7 3 8

According to the question, the following condition should be fulfilled:

7 →Χ 5 3

The above condition is being fulfilled 3 times in the given series.