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If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 7125843, then what will the sum of the highest and lowest
Question

If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 7125843, then what will the sum of the highest and lowest digits in the new number thus formed be?​

A.

6

B.

7

C.

9

D.

8

Correct option is D

Given: 7125843
Add 1 to each odd digit and subtract 2 from each even digit.
7 is odd → 7 + 1 = 8
1 is odd → 1 + 1 = 2
2 is even → 2 - 2 = 0
5 is odd → 5 + 1 = 6
8 is even → 8 - 2 = 6
4 is even → 4 - 2 = 2
3 is odd → 3 + 1 = 4
The new number formed is: 8, 2, 0, 6, 6, 2, 4
Highest = 8
Lowest = 0
Sum of highest and lowest = 8 + 0 = 8
So, will the sum of the highest and lowest digits in the new number thus formed be.
Thus, correct option is (d).

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