Short Quiz

Question 1 of 5

Assertion (A): 9 and 10 are co- prime numbers.
Reason (R): Co- prime numbers always differ by 1.

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 5

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 3 of 5

Which pair is a co-prime?

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

Select one option. Answers are shown after the test.

Question 4 of 5

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 5 of 5

Assertion (A): The number 6 is not a perfect number.
Reason (R): The factors of 6 are 1,2,3 and 6 and also their sum is 12 which is twice of 6.

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.

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