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Class 5 Exam  >  Class 5 Tests  >  Test: Factors and Multiples- 2 - Class 5 MCQ

Test: Factors and Multiples- 2 - Class 5 MCQ


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10 Questions MCQ Test - Test: Factors and Multiples- 2

Test: Factors and Multiples- 2 for Class 5 2024 is part of Class 5 preparation. The Test: Factors and Multiples- 2 questions and answers have been prepared according to the Class 5 exam syllabus.The Test: Factors and Multiples- 2 MCQs are made for Class 5 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Factors and Multiples- 2 below.
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Test: Factors and Multiples- 2 - Question 1
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What are the common factors of 9 and 36?

Detailed Solution for Test: Factors and Multiples- 2 - Question 1

Factors of 9 = 1, 3, 9
Factors of 36 = 1, 3, 4, 6, 9, 12, 36
Common factors are 1, 3, 9.

Test: Factors and Multiples- 2 - Question 2
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Find three common multiples of 18 and 6.

Detailed Solution for Test: Factors and Multiples- 2 - Question 2

Multiples of 18 = 18, 36, 54...
Multiples of 6 = 6, 12, 18,...
The first common multiple will be 18 And the next common multiples will be multiples of 18
Hence, first three common multiples of 18, 6 are 18, 36, 54.

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Test: Factors and Multiples- 2 - Question 3
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How many prime numbers are there from 50 to 100?

Detailed Solution for Test: Factors and Multiples- 2 - Question 3

The prime numbers between 50 and 100 are 53, 59, 61, 67, 71, 73, 79, 83, 89 and 97, which are 10 in number.

Test: Factors and Multiples- 2 - Question 4
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How is 20 written as the product of primes?
Detailed Solution for Test: Factors and Multiples- 2 - Question 4

20 expressed as a product of primes is 2 × 2 × 5.

Test: Factors and Multiples- 2 - Question 5
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Identify the correct statement.
Detailed Solution for Test: Factors and Multiples- 2 - Question 5

The L.C.M. of co-primes is their product.

Test: Factors and Multiples- 2 - Question 6
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How many times the H.C.F. of 11, 33 and 88 is their L.C.M?
Detailed Solution for Test: Factors and Multiples- 2 - Question 6

H.C.F. of 11, 33 and 88 is 11.
L.C.M. of 11,33 and 88 is 11 × 3 × 8 = 11 × 24 = H.C.F .× 24.

Test: Factors and Multiples- 2 - Question 7
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Identify an example for co-prime numbers.
Detailed Solution for Test: Factors and Multiples- 2 - Question 7

Co-prime numbers are two numbers that have no common factors other than 1. Let's check each pair to identify the co-prime numbers:

  1. 25, 14

    • Factors of 25: 1, 5, 25
    • Factors of 14: 1, 2, 7, 14
    • Common factor: 1 (so, 25 and 14 are co-prime)

  2. 18, 16

    • Factors of 18: 1, 2, 3, 6, 9, 18
    • Factors of 16: 1, 2, 4, 8, 16
    • Common factors: 1, 2 (so, 18 and 16 are not co-prime)

  3. 9, 18

    • Factors of 9: 1, 3, 9
    • Factors of 18: 1, 2, 3, 6, 9, 18
    • Common factors: 1, 3, 9 (so, 9 and 18 are not co-prime)

  4. 11, 77

    • Factors of 11: 1, 11
    • Factors of 77: 1, 7, 11, 77
    • Common factors: 1, 11 (so, 11 and 77 are not co-prime)

Therefore, the example of co-prime numbers is: 25, 14.

Test: Factors and Multiples- 2 - Question 8
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The L.C.M. of two numbers is 10 times their H.C.F. Find the numbers.
Detailed Solution for Test: Factors and Multiples- 2 - Question 8

Let the numbers be 24 and 240.
Then their H.C.F. = 24 and L.C.M. = 240.
Hence the required numbers are 24 and 240.

Test: Factors and Multiples- 2 - Question 9
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What is the sum of the first five multiples of 8?
Detailed Solution for Test: Factors and Multiples- 2 - Question 9

The sum of the first five multiples of 8 is 8 + 16 + 24 + 32 + 40 = 120.

Test: Factors and Multiples- 2 - Question 10
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Find the least 4−digit number that is divisible by 8.
Detailed Solution for Test: Factors and Multiples- 2 - Question 10

The least 4-digit number is1000, which is exactly divisible by 8 as 8 × 125 = 1000.

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