MediumBrain Teasers

Mislabeled Jars

Jane StreetOptiver

Three jars are labeled “Apples”, “Oranges”, and “Apples + Oranges”. Every label is wrong. Drawing one fruit at a time without looking, what is the minimum number of draws to correctly relabel all three jars?

Approach

Start with the jar whose label cannot possibly be true in a useful way.

Every label is wrong — use that hard.