Civil Services TNPSC Group 1 (New Syllabus) Mock Test 2025 Logical Reasoning Arrangement and Pattern Number Arrangement
If each of the odd digits in the number 8463247 is increased by ‘1’ and each of the even digits is decreased by ‘1’, then which of the following will be the sum of the digits of the number?
1
32
2
31
3
28
4
29
5
Answer not known