PSEB 7th Class Maths MCQ Chapter 9 Rational Numbers

Punjab State Board PSEB 7th Class Maths Book Solutions Chapter 9 Rational Numbers MCQ Questions with Answers.

PSEB 7th Class Maths Chapter 9 Rational Numbers MCQ Questions

Multiple Choice Questions :

Question 1.
Look at the above number line and tell which of the following values is the greatest.
(a) a + b
(b) b – a
(c) a × b
(d) a ÷ b
Answer:
(a) a + b

Question 2.
The product of a rational number and its reciprocal is always :
(a) -1
(b) 0
(c) 1
(d) equal to itself.
Answer:
(c) 1

Question 3.
Which of the following is not an natural number ?
(a) 0
(b) 2
(c) 10
(d) 105.
Answer:
(a) 0

Question 4.
The ascending order of $$\frac{-3}{5}, \frac{-2}{5}, \frac{-1}{5}$$ is :
(a) $$\frac{-1}{5}<\frac{3}{5}<\frac{2}{5}$$
(b) $$\frac{-3}{5}<\frac{-2}{5}<\frac{-1}{5}$$
(c) $$\frac{-3}{5}<\frac{-1}{5}<\frac{-2}{5}$$
(d) $$\frac{-2}{5}<\frac{-3}{5}<\frac{-1}{5}$$
Answer:
(b) $$\frac{-3}{5}<\frac{-2}{5}<\frac{-1}{5}$$

Question 5.
Write $$\frac {1}{4}$$ as a rational number with 4 denominator 20.
(a) $$\frac{2}{20}$$
(b) $$\frac{3}{20}$$
(c) $$\frac{5}{20}$$
(d) $$\frac{4}{20}$$
Answer:
(c) $$\frac{5}{20}$$

Question 6.
The value of $$\frac{-13}{7}+\frac{6}{7}$$ :
(a) $$\frac{19}{7}$$
(b) $$\frac{-7}{7}$$
(c) $$\frac{7}{7}$$
(d) None of these
Answer:
(b) $$\frac{-7}{7}$$

Question 7.
The additive inverse of $$\frac{-9}{11}$$ is :
(a) $$\frac{9}{11}$$
(b) $$\frac{-9}{11}$$
(c) $$\frac{11}{9}$$
(d) $$\frac{-11}{9}$$
Answer:
(a) $$\frac{9}{11}$$

Question 8.
The additive inverse of $$\frac{5}{7}$$ is :
(a) $$\frac{7}{5}$$
(b) $$\frac{-5}{7}$$
(c) $$\frac{-7}{5}$$
(d) $$\frac{5}{7}$$
Answer:
(b) $$\frac{-5}{7}$$

Fill in the blanks :

Question 1.
The smallest natural number is ………………..
Answer:
1

Question 2.
The numbers which are used for counting are called ………………..
Answer:
natural number

Question 3.
All natural number along with zero (0) are called ………………..
Answer:
whole number

Question 4.
Reciprocal of $$\frac {5}{3}$$ is ………………..
Answer:
$$\frac {3}{5}$$

Question 5.
Additive inverse of –$$\frac {3}{4}$$ is ………………..
Answer:
$$\frac {3}{4}$$

Write True or False :

Question 1.
The smallest natural number is zero (0). (True/False)
Answer:
False

Question 2.
0 is an integer which is neither negative nor positive. (True/False)
Answer:
True

Question 3.
The smallest whole number is 1. (True/False)
Answer:
False

Question 4.
–$$\frac {2}{5}$$ is a fraction. (True/False)
Answer:
False

Question 5.
$$\frac {1}{0}$$ not a rational number. (True/False)
Answer:
True