## MCQ Questions for Class 9 Maths Chapter 1 Number Systems

Explore numerous MCQ Questions of Polynomials Class 9 with answers provided with detailed solutions by looking below.

Question 1.

Which of the following is a rational number?

(a) π

(b) 0

(c) 1+√3

(d) 2√3

## Answer

Answer: (b) 0

Question 2.

Which of the following is the product of \(\frac { 7 }{ 8 }\) and \(\frac { -4 }{ 21 }\)?

(a) \(\frac { -1 }{ 6 }\)

(b) \(\frac { 1 }{ 12 }\)

(c) \(\frac { -16 }{ 63 }\)

(d) \(\frac { -147 }{ 16 }\)

## Answer

Answer: (a) \(\frac { -1 }{ 6 }\)

Question 3.

In between two rational number there is/are:

(a) Exactly one rational number

(b) Infinitely many rational number

(c) Many irrational numbers

(d) Only irrational numbers

## Answer

Answer: (b) Infinitely many rational number

Question 4.

The product of a rational and an irrational numbers is:

(a) Always an integer

(b) Always a rational number

(c) Always an irrational number

(d) Sometimes rational and sometimes irrational

## Answer

Answer: (c) Always an irrational number

Question 5.

If the HCF of 65 and 117 is expressible in the form 65m – 117, then the value of m is

(a) 4

(b) 2

(c) 1

(d) 3

## Answer

Answer: (b) 2

Question 6.

The HCF and LCM of two numbers are 33 and 264 respectively. When the first number is completely divided by 2 the quotient is 33. The other number is:

(a) 66

(b) 130

(c) 132

(d) 196

## Answer

Answer: (c) 132

Question 7.

The decimal fraction in which there are finite number of digits in its decimal part is called

(a) terminating decimal fraction

(b) non-terminating decimal fraction

(c) linear fraction

(d) quadratic fraction

## Answer

Answer: (a) terminating decimal fraction

Question 8.

The product of a rational and an irrational numbers is:

(a) Always an integer

(b) Always a rational number

(c) Always an irrational number

(d) Sometimes rational and sometimes irrational

## Answer

Answer: (c) Always an irrational number

Question 9.

Can we write 0 in the form of \(\frac { p }{ q }\)?

(a) Yes

(b) No

(c) Cannot be explained

(d) None of the above

## Answer

Answer: (a) Yes

Question 10.

3√6 + 4√6 is equal to:

(a) 6√6

(b) 7√6

(c) 4√12

(d) 7√12

## Answer

Answer: (b) 7√6