Bags mix-up- Logic and Decision Trees

Three bags contain 2 t-shirts or 2 hoodies or 1 hoodie and 1 t-shirt, and none are labelled correctly. Can you tell which back belongs to whom by only taking one (random) item from one bag?

7mins

24 Oct 2014

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Medicine muddle - Encoding and Binary

Given four bottles with indistinguishable liquid, one of which is a vital medicine, two containers and a test that can be done only once, how can you determine which of the the bottles contain the medicine?

5mins

24 Oct 2014

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