1.

If LCM of "a" and "b" is a and LCM of "b" and "c" is b, then what is the LCM of "c" and "a".

Group 1 - 2019

2.

Find the LCM of 3(a-1), 2(a-1)^{2}, (a^{2}-1)

Group 4 - 2019

A.

(a+1)^{2}(a+1)

B.

(a-1)^{2}(a+1)

C.

6(a-1)(a+1)^{2}

D.

6(a-1)^{2}(a+1)

3.

The GCD and LCM of two polynomials are x+1 and x^{4} - 1 respectively. If one of the polynomials is x^{2} + 1, find the other one.

Group 1 - 2019

A.

x^{3} - 1

B.

(x + 1)(x^{2} - 1)

C.

x^{2} + x -1

D.

x^{2} - x + 1

4.

Find the LCM of a^{3}b^{4}, ab^{5} and a^{2}b^{7}

Group 4 - 2016

5.

Product of two positive number ,is 34560. The LCM is sixty times of its GCD. Then the difference of LCM and GCD is

Group 1 - 2017

6.

The product of two numbers is 1600 and their H.C.F. is 5, the L.C.M. of the number is

Group 2 - 2018