If 2 is added to each even digit and 2 is added to each odd digit in the number 5217643, what will be the sum of the first digit from the left and the first digit from the right in the new number thus formed?​

Correct option is C

Given:  5217643
Operation:
Add 2 to each even digit
Add 2 to each odd digit
Then, find the sum of the first digit from the left and first digit from the right in the new number.
5 2 1 7 6 4 3
Now apply the rule:
Digit Even/Odd +2 → New Digit
5 Odd 5 + 2 = 7
2 Even 2 + 2 = 4
1 Odd 1 + 2 = 3
7 Odd 7 + 2 = 9
6 Even 6 + 2 = 8
4 Even 4 + 2 = 6
3 Odd 3 + 2 = 5
New number: 7439865
First digit from the left = 7
First digit from the right = 5
Explanation:
Now add the two:
7 + 5 = 12
Final Answer:
The required sum is 12
Final Correct Option: (C) 12