AFCAT | Elementary Mathematics | HCF & LCM

Sum of two numbers is 304; H.C.F of the numbers is 38. The difference of the numbers is –

The least number which when divided by 21, 25 and 36 leaves 6 as the remainder in each case but when divided by 11 leaves no remainder is

Let a, b be positive integers. What is HCF   equal to?

For any integer n, what is HCF (22n + 7, 33n + 10) equal to ?

If the HCF of two numbers is 21 & their LCM is 4641. If one of the number is in is between 200 & 300 then what are the numbers.