Both x and y vary directly with each other and when x is 10, y is 14, which of the following is not a possible pair of corresponding values of x and y?

Both x and y vary directly with each other.


i.e. x


if x = 10 and y = 14


so, 10 14 or 5 7


This proportion is not follow in option (b) pairs.


Hence, Option(b) is correct.

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