If x and y are different positive integer numbers and 3x/y = 4 then find the minimum value of (3x + 4y).

3x/y = 4 (given)

3x = 4y

Minimum value of 3x + 4y,

∴ 3x + 3x = 6x, since x is a positive integer, so the minimum value of x can be 1, but this make the value of y 0.75

If x is 2, y will be 1.5

If x is 3, y will be 2.25

If x is 4, y will be 3, This satisfies the given condition

∴ Minimum value of 3x + 4y = 24