Civil Services UPSC Mock Test Series 2025 (Prelims + Mains) Logical Reasoning Arrangement and Pattern Number Arrangement
In the sequence 1, 5, 7, 3, 5, 7, 4, 3, 5, 7, how many such 5s are there which are not immediately preceded by 3 but are immediately followed by 7?
1
1
2
2
3
3
4
None