engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Logical Reasoning Series Number Series
How many ‘3’ are there in the following sequence which is either preceded by 8 and immediately followed by 7 or preceded by 7 and immediately followed by 8?
5 9 8 6 7 8 3 7 8 4 6 3 7 3 8 8 3 7 7 3 5 7 3 8 7 3 31
2
2
3
3
4
4
More than 4