This question is based on the five, three-digit numbers given below.

465 638 359 987 563

If the positions of the first two digits in each number are reversed, then the difference between the first digit of the greatest number and the first digit of the lowest number is equal to:

(Example- 697 – First digit = 6, second digit = 9 and third digit = 7)

Correct option is D

Given numbers:
465, 638, 359, 987, 563

Step 1: Reverse the positions of the first two digits in each number
465 → 465 → 465? No, reverse first two digits → 645
638 → 368
359 → 539
987 → 897
563 → 653
Now we have: 645, 368, 539, 897, 653

Step 2: Identify the greatest and the lowest numbers
Greatest number = 897
Lowest number = 368

Step 3: Take the first digit of each
First digit of greatest number = 8
First digit of lowest number = 3

Step 4: Find the difference
8 − 3 = 5
The correct answer is: 5