BdMO National Secondary 2015#1

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samiul_samin
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BdMO National Secondary 2015#1

Unread post by samiul_samin » Tue Feb 19, 2019 11:20 am

A crime is committed during the hartal.There are four witnesses.The witnesses are logicians and make the following statement:
●Witness One said exactly one of the four witnesses is a liar.
●Witness Two said exactly two of the four witnesses is a liar.
●Witness Three said exactly three of the four witnesses is a liar.
●Witness Four said exactly four of the four witnesses is a liar.
Assume that each of the statements is either true or false.How many of the winesses are liars?

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samiul_samin
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Re: BdMO National Secondary 2015#1

Unread post by samiul_samin » Tue Feb 19, 2019 3:42 pm

According the question only third witness is true.So,there are three liars.Actually it is the most paradoxical BdMO National question till now.

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