Q. 75.0( 1 Vote )

# In which of the following case, do the quantities vary directly with each other?A. B. C. D.

In option (a)

x = .5,2,8,32 and y = 2,8,32,128

if we multiply x with 4, we get the directly required result as same as shown in corresponding y. in this case, as the value of x increase, the value of y also increase. Hence, option(a) is correct.

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