A monastery is home to 20 nuns and a head abbess. The nuns do not communicate...
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A monastery is home to 20 nuns and a head abbess. The nuns do not communicate (no talking, no eye contact, no sign language) and see each other only once a day in a commons room before each going to their separate rooms. On Monday the head abbess informs the nuns that at least one or more amongst them are ill and must leave the monastery. In reality there are 8 ill nuns (but the nuns do not know that). The ones that are ill (unaware for themselves) have a dot marking on their forehead, but they can't see their own forehead while others can. Also, obviously, there are no mirrors at the monastery. Yet one day, all of the ill nuns independently determine the correct number and identity of the ill nuns and vacate the place on the same day Explain how they figured it out and what day of the week they left the monastery... P.S. The solution to this problem is analytic, not trivial. You must think about this mathematically instead of searching for quick shortcuts. A monastery is home to 20 nuns and a head abbess. The nuns do not communicate (no talking, no eye contact, no sign language) and see each other only once a day in a commons room before each going to their separate rooms. On Monday the head abbess informs the nuns that at least one or more amongst them are ill and must leave the monastery. In reality there are 8 ill nuns (but the nuns do not know that). The ones that are ill (unaware for themselves) have a dot marking on their forehead, but they can't see their own forehead while others can. Also, obviously, there are no mirrors at the monastery. Yet one day, all of the ill nuns independently determine the correct number and identity of the ill nuns and vacate the place on the same day Explain how they figured it out and what day of the week they left the monastery... P.S. The solution to this problem is analytic, not trivial. You must think about this mathematically instead of searching for quick shortcuts.
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Answer rating: 100% (QA)
This classic puzzle is known as the Nuns and Foreheads puzzle and requires some analytical thinking Understanding the situation There are 20 nuns in t... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
Posted Date:
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