Question

What is the number x ? The LCM of x and 18 is 36. The HCF of x and 18 is 2.

Answer 1

Answer:

x=4

Step-by-step explanation:

36×2=x×18

x=36×2)18=4.

Answer 2

It is given that

LCM(x, 18) = 36

HCF(x, 18) = 2

Now, the relation between two numbers 'a' and 'b', their LCM and their HCF is given as

a × b = LCM(a, b) × HCF(a, b)

That is, product of two numbers = product of their HCF and LCM

Hence,

x × 18 = 36 × 2

→ 18x = 72

→ x = 72/18

→ x = 4

Hence, the value of x is 4.