Three numbers are in the ratio $1: 2: 3$ and their $HCF$ is $12$. The numbers are:

The $LCM$ of $22, 54, 108, 135$ and $198$ is

Three different containers contain different quantities of a mixture of milk and water,measuring $403 \ kg$,$434 \ kg$,and $465 \ kg$. What is the largest measure that can measure all these quantities exactly? (in $kg$)

$L.C.M.$ and $H.C.F.$ of two numbers $x$ and $y$ are $315$ and $3,$ respectively. If $x+y=36,$ the value of $\frac{1}{x}+\frac{1}{y}$ is

Find the greatest number of four digits which is exactly divisible by $24, 28, 30$ and $35$.

The $HCF$ and $LCM$ of two numbers are $36$ and $756$ respectively. Find the possible pair of numbers.