# MCQ Questions for Class 6 Maths Chapter 3 Playing with Numbers with Answers

Students are advised to solve Playing with Numbers Multiple Choice Questions of Class 6 Maths to know different concepts. Practicing the MCQ Questions on Playing with Numbers Class 6 with answers will boost your confidence thereby helping you score well in the exam.

Explore numerous MCQ Questions of Playing with Numbers Class 6 with answers provided with detailed solutions by looking below.

Question 1.

The LCM of 12 and 16 is:

(a) 32

(b) 60

(c) 48

(d) none of these

## Answer

Answer: (c) 48

Explanation: 48

LCM = 2 × 2 × 2 × 2 × 3 = 48

Question 2.

What are the numbers which have more than two factors called?

(a) Even numbers

(b) Prime numbers

(c) Composite numbers

(d) Odd numbers

## Answer

Answer: (c) Composite numbers

Question 3.

The sum of two odd and one even numbers is

(a) Even

(b) Prime

(c) Composite

(d) Odd

## Answer

Answer: (a) Even

Question 4.

The number which is divisible by 5 is:

(a) 422

(b) 423

(c) 424

(d) 425

## Answer

Answer: (d) 425

Explanation: 425, a number is divisible by 5 if its unit’s digit is either 0 or 5.

Question 5.

The HCF of 12 and 40 is:

(a) 3

(b) 4

(c) 5

(d) 6

## Answer

Answer: (b) 4

Explanation: 4,

2 × 2 × 3

HCF = 2 × 2 = 4

40 = 2 × 2 × 2 × 5

Question 6.

Every ______ of a number is greater than or equal to that number.

(a) factor

(b) number

(c) multiple

(d) none to these

## Answer

Answer: (c) multiple

Question 7.

What is the H.C.F. of two co-prime numbers?

(a) 1

(b) 0

(c) 2

(d) 4

## Answer

Answer: (a) 1

Question 8.

The LCM of 12, 15, 45 is:

(a) 170

(b) 180

(c) 190

(d) 200

## Answer

Answer: (b) 180

Explanation: 180

LCM = 2 × 2 × 3 × 3 × 5 = 180

Question 9.

Find the HCF of 27, 63.

(a) 2

(b) 6

(c) 3

(d) 9

## Answer

Answer: (d) 9

Question 10.

______ is the smallest prime number which is even.

(a) 2

(b) 4

(c) 3

(d) 1

## Answer

Answer: (a) 2

Question 11.

If a number is divisible by 10, then which of the following can be its one’s digit?

(a) 2

(b) 3

(c) 4

(d) 0

## Answer

Answer: (d) 0

Question 12.

The value of 10 + 40 ÷ 8 × 2 – 9 is:

(a) 9

(b) 10

(c) 11

(d) 12

## Answer

Answer: (c) 11

Explanation: 10 + 40 ÷ 8 × 2 – 9 = 10 + 5 × 2 – 9 = 10 + 10 – 9 = 20 – 9 = 11 (BODMAS Rule)

Question 13.

The number which is divisible by 3 is:

(a) 135

(b) 136

(c) 137

(d) 139

## Answer

Answer: (a) 135

Explanation: 135, 1 + 3 + 5 = 9 which is divisible by 3 therefore no. is divisible.

Question 14.

The only prime number which is also even is

(a) 6

(b) 1

(c) 2

(d) 4

## Answer

Answer: (c) 2

Question 15.

Which of the following is the L.C.M. of 36 and 72?

(a) 36

(b) 72

(c) 108

(d) 2

## Answer

Answer: (b) 72

Question 16.

A prime number is a number which:

(a) is divisible by 2

(b) is not divisible by 2

(c) has no factors

(d) has exactly two factors

## Answer

Answer: (d) has exactly two factors

Explanation: Exactly two factors are 1 and the number itself.

Question 17.

Which of them is composite number?

(a) 6

(b) 5

(c) 7

(d) 3

## Answer

Answer: (a) 6

Question 18.

Which of them is prime number?

(a) 3

(b) 6

(c) 9

(d) 8

## Answer

Answer: (a) 3

Question 19.

The value of 18 – 3 × 4 + 1 is:

(a) 61

(b) 75

(c) 7

(d) none of these

## Answer

Answer: (c) 7

Explanation: 7, 18 – 3 × 4 + 1 = 18 – 12 + 1 = 19 – 12 = 07 (BODMAS Rule)

Question 20.

Prime factors of 45 are:

(a) 5, 9

(b) 3, 15

(c) 3, 3, 5

(d) none of these

## Answer

Answer: (c) 3, 3, 5

Explanation: 45 = 3 × 3 × 5.

Question 21.

Which of the following is the prime factorisation of 140?

(a) 2 × 2 × 7

(b) 2 × 2 × 5

(c) 2 × 2 × 5 × 7

(d) 2 × 2 × 5 × 7 × 3

## Answer

Answer: (c) 2 × 2 × 5 × 7

Question 22.

Which is the number that is neither prime nor composite?

(a) 0

(b) 1

(c) 2

(d) 5

## Answer

Answer: (b) 1

Question 23.

The common factors of 24 and 40 are:

(a) 1, 3, 4, 8

(b) 1, 2, 4, 8

(c) 1, 4, 5, 9

(d) none of these

## Answer

Answer: (b) 1, 2, 4, 8

Explanation: 1, 2, 4, 8. 24 and 40 are both divisible by 1, 2, 4, 8.

Question 24.

Value of 30 + 14 ÷ 2 is:

(a) 22

(b) 29

(c) 37

(d) none of these

## Answer

Answer: (c) 37

Explanation: 37, 30 + 14 ÷ 2 = 30 + 7 = 37 (By BODMAS Rule)

Question 25.

901153 is divisible by ___.

(a) 3

(b) 5

(c) 11

(d) 7

## Answer

Answer: (c) 11

Question 26.

If a number is divisible by 2 and 3 both then is divisible by

(a) 3

(b) 6

(c) 5

(d) 7

## Answer

Answer: (b) 6

Question 27.

Which of the following numbers is a prime number?

(a) 10

(b) 11

(c) 12

(d) 15

## Answer

Answer: (b) 11

Explanation: 11 has factors 1 and 11 only.

Question 28.

The smallest prime number is:

(a) 1

(b) 2

(c) 3

(d) none of these

## Answer

Answer: (b) 2

Explanation: Prime numbers start from the number 2.

Question 29.

Which of these numbers is a factor of every number?

(a) 0

(b) 1

(c) 2

(d) 4

## Answer

Answer: (b) 1

Question 30.

Number of factors of a given number are _______.

(a) finite

(b) infinite

(c) 3

(d) 2

## Answer

Answer: (a) finite

Question 31.

What is the H.C.F. of 120, 144 and 216?

(a) 38

(b) 24

(c) 120

(d) 144

## Answer

Answer: (b) 24

Question 32.

Every prime number except ______ is odd.

(a) 5

(b) 7

(c) 2

(d) 3

## Answer

Answer: (c) 2

Question 33.

What are the numbers which are multiples of 2 called?

(a) Odd numbers

(b) Even numbers

(c) Prime numbers

(d) Composite numbers

## Answer

Answer: (b) Even numbers

Question 34.

The number which is divisible by 2 is:

(a) 135

(b) 136

(c) 137

(d) 139

## Answer

Answer: (b) 136

Explanation: 136 is an even no. and every even no. is divisible by 2.

Question 35.

The LCM of 8 and 6 is:

(a) 22

(b) 24

(c) 26

(d) 28

## Answer

Answer: (b) 24

Explanation: 4

LCM = 2 × 2 × 2 × 3 = 24

Question 36.

The largest three digit number which is exactly divisible by 3 is:

(a) 999

(b) 996

(c) 992

(d) none of these

## Answer

Answer: (a) 999

Explanation: 999, 9 + 9 + 9 = 27 which is divisible by 3.

Question 37.

_____ is the factor of 68.

(a) 6

(b) 5

(c) 3

(d) 17

## Answer

Answer: (d) 17

Question 38.

Choose the maximum consecutive numbers less than 100 so that there is no prime number between them.

(a) 6

(b) 5

(c) 7

(d) 8

## Answer

Answer: (c) 7

Fill in the blanks:

1. First 5 multiples of 5 are ……………………….

## Answer

Answer: 5, 10, 15, 20, 25

2. Is 39 a prime number? ………………….

## Answer

Answer: yes

3. All the factors of 20 are ………………

## Answer

Answer: 1, 2, 4, 5, 10, 20

4. First three multiples of 16 are …………….

## Answer

Answer: 16, 32, 48

5. 146 …………….. 8 is divisible by 3.

## Answer

Answer: 2

6. In each of the following, fill in the blanks with the smallest digit to make it divisible by 3.

(i) 75 ……….. 3

(ii) 135 …………. 8

(iii) 2375 ……………

(iv) 2159 ……………

## Answer

Answer: (i) 3, (ii) 1, (iii) 1, (iv) 1

7. In each of the following, fill in the blanks with the smallest digit to make it divisible by 11.

(i) 1083 …………….. 2

(ii) 620 ………….. 53

(iii) 86 ………….. 41

## Answer

Answer: (i) 7, (ii) 6, (iii) 1

8. LCM × HCF = ……………….. × …………………

## Answer

Answer: first number × second number

9. The smallest prime number is …………………..

## Answer

Answer: 2

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