Which of the following is the largest three-digit number that is a perfect square?
Show answer & explanation
Correct answer: B
Explanation
Given:
The largest three-digit number = 999
By the formula:
If n² ≤ 999, then n² is the largest perfect square.
31² = 961
32² = 1024 (> 999)
Therefore, the largest perfect square less than 999 = 31² = 961