How many such 3s are there in the following number sequence which are neither immediately preceded by 5 nor immediately followed by 9 ?
9 3 9 5 3 9 5 9 3 9 3 7 2 3 5 3 9 5 3 9 5 8 6 3 7
1
four
2
two
3
five
4
three
How many such 3s are there in the following number sequence which are neither immediately preceded by 5 nor immediately followed by 9 ?
9 3 9 5 3 9 5 9 3 9 3 7 2 3 5 3 9 5 3 9 5 8 6 3 7