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imagine, you are going to some village in your way you find two roads you don't know which road is path to your destination .there are two persons appear one rson tells always true and another person tellls always falls(you don't know who tells true or false)you should ask one of them and one question,you get way what you ask might be

Note by Sai Venkata Raju Nanduri
3 years, 12 months ago

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Hi, Raju. This is a problem in recriational mathematics. The solution is very simple. Let the right path be R and the wrong path be W. Let the two people be A and B. Where A always tells the truth and B always tells the false. So if you ask A "What do you think B would say is the right path?" A knows that the right path is R but since B is a lier, so B would always say W. For these reason A would always say W. However, if you ask B the same question, by the same deduction principle, B would say W.

So, if you want to find the right path you do the opposite of both and follow path R.

Sabab Ahad - 3 years, 11 months ago

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Sai Venkata Raju Nanduri - 3 years, 11 months ago

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