This question is based on the five, three-digit numbers given below.
(Left) 318 745 472 123 672 (Right)
(Example: 697 – First digit = 6, second digit = 9 and third digit = 7)
(NOTE: All operations to be done from left to right.)
If all the numbers are arranged in the ascending order, the position of how many numbers will remain unchanged?

The correct answer is 1 (or Option 3, which corresponds to 1).

Step-by-Step Explanation:

Step 1: Write down the original order of the numbers.
The given sequence of numbers from left to right is:
1st position: 318
2nd position: 745
3rd position: 472
4th position: 123
5th position: 672

Step 2: Arrange all numbers in ascending order (from smallest to largest).
Sorting the given numbers (123, 318, 472, 672, 745) into ascending order gives:
1st position: 123
2nd position: 318
3rd position: 472
4th position: 672
5th position: 745

Step 3: Compare the original positions with the new positions.

• Position 1: Originally 318, now 123 (Changed)
• Position 2: Originally 745, now 318 (Changed)
• Position 3: Originally 472, now 472 (Unchanged)
• Position 4: Originally 123, now 672 (Changed)
• Position 5: Originally 672, now 745 (Changed)

Conclusion:
Only 1 number (472 at the 3rd position) remains in its original position after arranging the numbers in ascending order.