Let the amount of coffee consumed by the class be cupsOriginally Posted by fring
Let the amout of milk consumed by the class be cups.
We do not assume that and/or are integers,
just that they are greater than to zero (because Kathy drank some of both
neither can be zero).
Kathy drank a cup of coffee milk mixture, and from what we are told we
Rearranging this gives:
Also if there are students in the class, as they each drink a cup we have:
From it is clear that cups and , so .
Now trial and error should allow you to find that the only solution consistent
with , , and the constraints on , and is:
You will need to check this yourself.