The $HCF$ of two numbers is $11$ and their $LCM$ is $7700.$ If one of the numbers is $275,$ then the other is:

Find the smallest whole number which is exactly divisible by $6, 8, 15, 18$ and $24$.

The product of two numbers is $6760$ and their $H.C.F.$ is $13.$ How many such pairs can be formed?

There are five bells which start ringing together at intervals of $3, 6, 9, 12$ and $15$ seconds respectively. In $36$ minutes,how many times will the bells ring simultaneously?

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 $kg$)

The least number which when divided by $12, 15, 20$ and $54$ leaves in each case a remainder of $8$ is: