Real Numbers Quiz - CBSE Class 10 Mathematics

Free practice quiz: Real Numbers (CBSE Class 10 Mathematics). 18 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What are the set of all real numbers?

   1. Natural numbers
   2. Whole numbers
   3. Real numbers
   4. Imaginary numbers
   Show answer

   Answer: C. Real numbers

   Real numbers include both rational and irrational numbers, encompassing all numbers without imaginary components.

2. Which number is not a whole number?

   1. 0
   2. 4
   3. 7.5
   4. 5
   Show answer

   Answer: C. 7.5

   Whole numbers are all non-negative integers, 7.5 has a fractional part which makes it not a whole number.

3. Which statement is true about integers?

   1. All integers are real numbers
   2. All integers are imaginary
   3. Integers cannot be negative
   4. Integers include fractions
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   Answer: A. All integers are real numbers

   Integers are a subset of real numbers, including positive, negative numbers, and zero.

4. Which is true for every real number?

   1. It is rational
   2. It is irrational
   3. It is real
   4. It must be a fraction
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   Answer: C. It is real

   Every number classified in this range of study is indeed a real number.

5. The product of two irrational numbers is:

   1. Always rational
   2. Always irrational
   3. Sometimes rational
   4. Never rational
   Show answer

   Answer: C. Sometimes rational

   Product of two irrational numbers can be rational, for example: √2 * √2 = 2.

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