Question

LCM and HCF of two numbers is 12 and 2 respectively. 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

LCM x HCF = Product of two numbers

Given LCM = 12; HCF = 2 and one of the number is 6.

Let the other number be $x$

Hence, 12 $\times$ 2 = 6 $\times x$

$\Rightarrow x$ = $\frac{12\times 2}{6}$

= 4

$\therefore$ The other number is 4