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If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 7452183, then what will the difference between the highest
Question

If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 7452183, then what will the difference between the highest and lowest digits in the new number thus formed be?​

A.

6

B.

9

C.

8

D.

7

Correct option is C

Given number: 7452183
Apply the rule:
Add 1 to each odd digit
Subtract 2 from each even digit
7 (odd) → 7 + 1 = 8
4 (even) → 4 − 2 = 2
5 (odd) → 5 + 1 = 6
2 (even) → 2 − 2 = 0
1 (odd) → 1 + 1 = 2
8 (even) → 8 − 2 = 6
3 (odd) → 3 + 1 = 4
New number: 8260264
Now, highest digit = 8, lowest digit = 0
Difference = 8 − 0 = 8
Correct Answer is (C) 8.

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