Posted by michael on Saturday, March 22, 2008 at 4:16pm.
x is inversely proportional to y ---> x = k/y
if x=60, then y=0.5
60 = k/.05
k = 3
so x = 3/y or xy = 3
when y = 12
12x = 3
x = 3/12 = 1/4
I did this very systematically, you can shorten it up a bit
my choices are 0.4, 25, 2.5, or 360.
so, is the answer 0.4 or 25?
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