Elementary school? I'm a senior in high school, and I'm confused about this question...
Or is it that he eats 17/66 of what was left left from the first day... and then eats 34/66 of what was left on the second day... and eats 68/66 of what was left on the third day... that still doesn't work.
It would take him way less than 27 days to finish the bag of cookies.
Is it just me or is does this question have no answer?
Is the answer 18 days? (Just a random guess)