​If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 4635748, what will be the sum of the digits which are second from the left and second from the right in the new number thus formed? ​

The number is: 4635748

Add 1 to each odd digit and Subtract 2 from each even digit,

So, the new number is: 2446826

Sum = second digit from the left+ second digit from the right

=4 + 2 = 6

Thus, correct option is (b).