On dividing 256a²b²c² by 64a², we get

What is the L.C.M of 12, 36, 6 and 9?

The LCM of two positive integers is twice the larger number and the HCF of the two numbers is 3. The smaller number is:

There are some boys and girls in a room. The square of the number of girls is 28 less than the square of the number of boys. If two more girls join then the number of boys and girls becomes equal, then what is the total number of boys and girls in the room?

Find the HCF of 60, 148 and 382.

What is the L.C. M of  .

If the LCM of two numbers is 288 and their ratio is 4 : 9, then HCF of the numbers is : 

The HCF of two numbers is 21 and their LCM is 840. If one of the numbers is 49, then the other number is: