railway DFCCIL Executive 2025 Mock Test Logical Reasoning Arrangement and Pattern Number Arrangement
How many odd numbers are followed by even numbers but not preceded by an odd number in the following string counting from the left end?
(Left) 9 7 6 5 7 9 7 6 0 7 8 9 2 4 5 6 7 3 3 3 4 6 7 3 8 4 2 1 2 4 5 2 1 6 7 8 6 5 4 3 8 (Right)
1
7
2
8
3
10
4
9