There are 4 parties A,B,C,D. There are 3 people x, y, z. X-says A or D will win. Y-says A will not win. Z-says B or D will not win. Only one of them is true. Which party won?

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sachuis2cool

  • Sep 7th, 2006
 

Ans is "A will win"

Choose that ans which gives positive ans.means if we choose Y or Z to be true,then we stillremain with 2 choices.

That is if Y is true,then either B,C or D will win.So u cant tell final ans that which party wins.

If Z is true,then either A or C or B or D will win ..means u cant give final ans.

So X remains..which keeps only 2 options.A or D will win.And if X is true then Y and Z are false.

means Y's saying that A will not win becomes false.therefore A will win.

Again Z is false.then B or D will not win becomes false.means as per Z B or D will win.but X says only A or D can win.So no chance for B.

Now A got strong point to win ,because Y is false and it directly states that A will win.

Now there is no chance for C to win.because one of X,Y,Z is true and no one concern about C.

Finally we remain with A  and answer is "A will win"

Thats all.

If you have any doubt then pls let me know.

Sachin

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ganeshbhat

  • Jan 14th, 2010
 

A will win, the key is only one of them is true.

If we consider the statement  'A will not win' to be true then the statements A or D will win or the statement B or D will win will have to be true, there is no way to decide this. Hence the statement which says A will not win has to be false which gives you the answer that A will win.

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