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Class 10MathematicsReal NumbersIrrational numbersEasyLevel 15
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Which of the following options is a rational number?

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Answer and explanation

Correct answer: (\sqrt{144})

Step 1: To find the rational option, look for the square root of a perfect square. Step 2: (144) is a perfect square and (\sqrt{144}=12). Step 3: Recognising perfect squares makes such questions very quick.

Related tags

Real-NumbersRational-NumberSquare-Root

Frequently asked questions

What is the correct answer to this question?

(\sqrt{144})

Why is this the correct answer?

Step 1: To find the rational option, look for the square root of a perfect square. Step 2: (144) is a perfect square and (\sqrt{144}=12). Step 3: Recognising perfect squares makes such questions very quick.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Irrational numbers.

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10 more MCQs
  1. 1Which of the following numbers is irrational?
  2. 2Which of the following numbers is rational?
  3. 3What type of number is (\sqrt{16})?
  4. 4Which statement about (\sqrt{10}) is correct?
  5. 5Which of the following is an example of an irrational number?
  6. 6Which decimal form represents an irrational number?
  7. 7What type of number is (0.3333\ldots)?
  8. 8Which statement is correct about (0.101001000100001\ldots)?
  9. 9If (a) is a non-zero rational number and (b) is an irrational number, what type of number is (ab) generally?
  10. 10What type of number is (\sqrt{2}+3)?
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