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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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