Observe the following tables and find which pair of variables (here x and y) are in inverse proportion.
Finding if x and y are in inverse proportion:
Two quantities x and y are said to vary in inverse proportion, if there exists a relation of the type xy = k between them, k being a constant
so, calculating xy for each case,
clearly xy is not equal to a constant value 'k',
hence x and y are not inversely proportional.