GCD and LCM using Recursion Multiple choice Questions and Answers (MCQs)

GCD and LCM using Recursion Multiple choice Questions and Answers (MCQs)

 Question 6 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In terms of Venn Diagram, which of the following expression gives LCM (Given A ꓵ B ≠ Ø)?
 A Multiplication of A U B terms B Multiplication of A ꓵ B terms C Multiplication of A*B terms D Multiplication of A-B terms
Question 6 Explanation:
In terms of Venn Diagram, the LCM is given by the Union of two sets. So A U B gives the LCM. While A ꓵ B gives the GCD.

 Question 7 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the LCM according to the given Venn Diagram?
 A 2 B 3 C 180 D 6
Question 7 Explanation:
In terms of Venn Diagram, the LCM is given by the Union of two sets. So A U B gives the LCM. So product of all the terms is 180.

 Question 8 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the lcm (a, b)?
 A a + b B gcd (a-b, b) if a>b C lcm (b, a) D a - b
Question 8 Explanation:
Since the LCM function is commutative, so lcm (a, b) = lcm (b, a).

 Question 9 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the LCM of 48, 18, 6?
 A 122 B 12*2 C 3 D 6
Question 9 Explanation:
The LCM of 48, 18, 6 is 144 and 122 is 144.

 Question 10 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Is 9 and 28 coprime number.
 A True B False
Question 10 Explanation:
Coprime numbers have GCD 1 and LCM is the product of the two given terms. So 9 and 28 are coprime numbers.

There are 10 questions to complete.