Question

LCM of two numbers is 12 and HCF of same two numbers is 2. If one of the numbers is 6 then the other number is _____.

• A. 6
• B. 4
• C. 12
• D. 14

Answer 1

The correct option is B

4

It is given that LCM = 12; HCF=2
Product of 2 numbers = HCF × LCM of the respective numbers
$\Rightarrow$ 6 $\times$ the other number = 12 $\times$ 2
$\Rightarrow$ 6 $\times$ the other number = 24

$\Rightarrow$the other number = $\frac{24}{6}$ = $4$

Hence, the other number = 4