Three boxes are labelled “Apples”, “Oranges” and “Mixed”. You are told that every label is wrong. You may draw a single fruit from one box of your choice and look at it. From which box should you draw in order to guarantee that you can then deduce the contents of all three boxes?
Athe box labelled “Apples”
Bthe box labelled “Oranges”
Cthe box labelled “Mixed”
Dany single box will work
Eit cannot be done with a single draw