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Which of the following is a perfect square?

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Question: Which of the following is a perfect square?

Options:

  1. 15
  2. 20
  3. 25
  4. 30

Correct Answer: 25

Solution: 

25 is a perfect square as it is equal to 5 × 5.

Which of the following is a perfect square?

Practice Questions

Q1
Which of the following is a perfect square?
  1. 15
  2. 20
  3. 25
  4. 30

Questions & Step-by-Step Solutions

Which of the following is a perfect square?
  • Step 1: Understand what a perfect square is. A perfect square is a number that can be expressed as the product of an integer multiplied by itself.
  • Step 2: Look at the number 25. We need to find out if it can be written as an integer times itself.
  • Step 3: Calculate the square root of 25. The square root of 25 is 5.
  • Step 4: Check if 5 multiplied by itself equals 25. So, calculate 5 × 5.
  • Step 5: Since 5 × 5 equals 25, we confirm that 25 is a perfect square.
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