How many rectangles are there in the given figure?

The smallest number which when divided by 23 and 28 leaves remainder 11 and 16 respectively is:

The ratio of two numbers is 5: 8 and their LCM is 320. What is the difference between these two numbers?

LCM of two numbers is 5 times their HCF. The product of the numbers is 4500. What will be the maximum possible difference between the numbers?

The HCF and LCM of two natural numbers are 15 and 75, respectively. What is the difference between the two numbers, if one of the numbers is 25?

Calculate the Least Common Multiple (L.C.M) of 144 and 180.

If the product of two numbers is 3026 and their LCM is 89 then their HCF is:

Three numbers are in the ratio 6:9:10 respectively. If the HCF of the numbers is 3, then find the LCM of the numbers.