Civil Services WBCS (Executive) Prelims + Mains Mock Tests 2025 Logical Reasoning Arrangement and Pattern Number Arrangement
If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 6159247, what will be the sum of the first two digits from the left in the new number thus formed?
1
16
2
14
3
8
4
12