If x is the HCF and y is the LCM of 3/5, 6/25, 9/20, 27/50 then which one of the following is correct?

The GCD of two numbers is 9 and LCM is 108. If one of the numbers is 27, then the other is

Sum of the HCF and LCM of two numbers is 504 and LCM is 55 times of HCF. If one number is 99, then the second number is

If HCF of 768 and x⁶y² is 32xy for natural numbers x ≥ 2, y ≥ 2, then what is the value of (x + y )?

Let L be the LCM and Hbe the HCF of two given numbers. L and H are in the ratio 3 : 2. If the sum of the two numbers is 45, then what is the product of the numbers?

The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is: