Manhattan CAT1
Susie can buy apples from two stores: a supermarket that sells apples only in bundles of 4, and a convenience store that sells single, unbundled apples. If Susie wants to ensure that the total number of apples she buys is a multiple of 5, what is the minimum number of apples she must buy from the convenience store?
Answer is 0. I checked 1.
Question is aking that Susie "must" buy apples. If answer is 0 that means she is not buying apples at all.
Any help is highly appreciated