Question

The H.C.F. of two numbers is $68$ and their L.C.M. is $2142$. If one of the numbers is $204$ then the other number is:

• A. $741$
• B. $742$
• C. $714$
• D. $357$

Answer 1

The correct option is C $714$

$HCF\times LCM=$ one number $\times$ other number

$\Rightarrow 68\times 2142=204\times$ another number

another number $=\frac{68\times 2142}{204}$

$=\frac{2142}{3}$

$=714$