Introduction Quiz - CBSE Class 7 Mathematics

Free practice quiz: Introduction (CBSE Class 7 Mathematics). 18 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is a rational number?

   1. A number that can be expressed as a fraction
   2. A whole number
   3. A decimal number
   4. A negative number
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   Answer: A. A number that can be expressed as a fraction

   Rational numbers are numbers that can be expressed as a ratio of two integers.

2. Which fraction represents the same value as 0.5?

   1. 1/5
   2. 1/2
   3. 2/5
   4. 3/4
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   Answer: B. 1/2

   The decimal 0.5 is equivalent to the fraction 1/2.

3. Which of these pairs of numbers are both rational?

   1. √2 and 2.5
   2. π and 3/7
   3. 1.5 and 7/3
   4. e and 5
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   Answer: C. 1.5 and 7/3

   1.5 is a rational number as it can be expressed as 3/2 and 7/3 is already a fraction.

4. Which of these is an example of a whole number that is also a rational number?

   1. 7
   2. √7
   3. π
   4. 1/7
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   Answer: A. 7

   Whole numbers are also rational numbers as they can be represented as fractions with 1 as the denominator.

5. If a = 1/3 and b = 1/6, find the value of a/b.

   1. 2
   2. 1/2
   3. 3
   4. 6
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   Answer: A. 2

   To find a/b, multiply a by the reciprocal of b: (1/3) × (6/1) = 2.

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