If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 56183472, what will be difference between the highest and lowest digits in the number thus formed?

Given: 56183472

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

5 → odd → 5 + 1 = 6

6 → even → 6 − 2 = 4

1 → odd → 1 + 1 = 2

8 → even → 8 − 2 = 6

3 → odd → 3 + 1 = 4

4 → even → 4 − 2 = 2

7 → odd → 7 + 1 = 8

2 → even → 2 − 2 = 0

Now, the new number is: 6, 4, 2, 6, 4, 2, 8, 0

Highest digit = 8

Lowest digit = 0

Difference = 8 − 0 = 8

Thus, correct option is (c).