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Poisoned Wine

GoogleJane Street

You have 1000 bottles of wine, exactly one of which is poisoned. A test strip reacts (after one hour) if it touches any poison. With only one hour before a feast, what is the minimum number of test strips needed to guarantee finding the poisoned bottle?

Approach

Think in binary.

Each strip encodes one bit of the answer.

Answer

Show the final answer

The answer is 10. Sign in free for the full worked solution and to check your own answer.

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