If x varies directly as y,
Question:

 If x varies directly as y, then

Solution:

If x and y varies directly, then;

x/y = k

If x=12 and y = 48, then

k = 12/48 = ¼

Now, if x=6, and k = 1/4, then y will be;

6/y = ¼

y = 6×4=24

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