10 Question MCQ (including Assertion)

Question 1 of 10

Assertion (A): The number 46 has more factors than 47.
Reason (R): 46 is a composite number and will have more than 2 factors whereas 47 is a prime number and will have only 2 factors.

A Both A and R are true, and R is the correct explanation of A. B Both A and R are true, but R is not the correct explanation of A. C A is true, but R is false. D A is false, but R is true.

Select one option. Answers are shown after the test.

Question 2 of 10

I have two 2 s, one 3 and two 13 s in my prime factorisation. Who am I?

A 2208 B 1560 C 2028 D 312

Select one option. Answers are shown after the test.

Question 3 of 10

Assertion (A): Any two prime numbers are co-prime.
Reason (R): Composite numbers are defined as whole numbers that have more than two factors.

A Both A and R are true, and R is the correct explanation of A. B Both A and R are true, but R is not the correct explanation of A. C A is true, but R is false. D A is false, but R is true.

Select one option. Answers are shown after the test.

Question 4 of 10

Which pair is a co-prime?

A 35 and 53 B 12 and 21 C 100 and 105 D 42 and 63

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Question 5 of 10

Assertion (A): 60 is a common multiple of 2 and 10.
Reason (R): 2 and 10 are the only factors of 60 .

A Both A and R are true, and R is the correct explanation of A. B Both A and R are true, but R is not the correct explanation of A. C A is true, but R is false. D A is false, but R is true.

Select one option. Answers are shown after the test.

Question 6 of 10

A Number which is divisible by \(2,4,5,8\) and 10 is

A 35622 B 28080 C 2848 D 28150

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Question 7 of 10

Assertion (A): The number 1 does not have any prime factorisation.
Reason (R): It is not divisible by any prime number.

A Both A and R are true, and R is the correct explanation of A. B Both A and R are true, but R is not the correct explanation of A. C A is true, but R is false. D A is false, but R is true.

Select one option. Answers are shown after the test.

Question 8 of 10

What is the common factor of 17,21 and 29 ?

A 17 B 29 C 7 D 1

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Question 9 of 10

Assertion (A): The number 5585 is divisible by 5 .
Reason (R): A number is divisible by 5 if the last two digits of number is divisible by 5.

A Both A and R are true, and R is the correct explanation of A. B Both A and R are true, but R is not the correct explanation of A. C A is true, but R is false. D A is false, but R is true.

Select one option. Answers are shown after the test.

Question 10 of 10

I am a number divisible by both 5 and 9 . What is the least number I can be?

A 45 B 15 C 90 D 30

Select one option. Answers are shown after the test.

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10 Question MCQ (including Assertion)