How many such 7s are there in the following number sequence each of which is immediately preceded by 5 but not immediately followed by 2?
6 7 2 8 9 5 7 3 2 5 7 4 6 5 7 9 8 7 2 6 5 7 1 3 5 7
1
five
2
six
3
four
4
three
How many such 7s are there in the following number sequence each of which is immediately preceded by 5 but not immediately followed by 2?
6 7 2 8 9 5 7 3 2 5 7 4 6 5 7 9 8 7 2 6 5 7 1 3 5 7