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## Playing with Numbers Class 6 MCQs Questions 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.

Click here to get an answer to your question ✍️ LCM of 12 and 16 is.

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

Prime factors of 38 are 2, 19.

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

Again, all the prime numbers you used to divide above are the Prime Factors of 144.

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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