If 2 is added to each odd digit, and 1 is subtracted from each even digit of the number 34135278, what is the sum of the third digit from the left and the third digit from the right?

Correct option is D

Given:

Number: 34135278

Add 2 to each odd digit and subtract 1 from each even digit.

Formula Used:

Identify each digit in the number. For each odd digit, add 2, and for each even digit, subtract 1.

Determine the third digit from the left and the third digit from the right in the transformed number, then find their sum.

Solution:

1. Transform each digit based on the rule:

3 -> 5
4 -> 3
1 -> 3
3 -> 5
5 -> 7
2 -> 1
7 -> 9
8 -> 7

2. Identify the third digit from the left and the third digit from the right:

- Third digit from the left: 3

- Third digit from the right: 1

3. Sum of these two digits:

3 + 1 = 4

Hence, the answer is 4.