Multiple choice

Which of the following is a perfect square? Hint: You can identify the perfect square using the ones' digit of the given number.

  1. 1683

  2. 1087

  3. 7862

  4. 2025

  5. 4298
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are couple of clues as follows: 1) As the other options are not perfect squares, this has higher chances to be the perfect square. 2) As the one's digit is 5, there is a chance for it to be a perfect square. 3) Rewriting 2025 as 5 * 405 = 5 * 5 * 81 = 52 * 92 Therefore, this option is correct.

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