Latest TCS Aptitude Question SOLUTION: 3 persons a,b,c were there A always says truth, B lies on Monday,tusday,& Wednesday. but C lies on thrusday,Friday & Saturday .one day A said “that B & C said to A that” B said

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(#M40009654) TCS question Keep an EYE

3 persons a,b,c were there A always says truth, B lies on Monday,tusday,& Wednesday. but C lies on thrusday,Friday & Saturday .one day A said “that B & C said to A that” B said “yesterday way one of the days when I lies”,C said that “yesterday way one of the days when I lies too”. then which day was that?

Asked In TCS krishnaprasad TATA (12 years ago)

Solved Vignesh Read Solution (5)

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Vignesh  (12 years ago)

Thursday.

On Thursday, B tells truth. And C tells lies.

So, B statement on that day is true. And C statement on that day is False.

So, that day is thursday.

Is this solution Helpfull? Yes (6) | No (4)  

abhishek pratap singh  (12 years ago)

It is clear that Either B true or C true both can't be true.
1.take first case: B true then day is Thursday and c tells lie (false).
2.take second case: C true then day is Sunday and B also speak truth on sunday so on this statemens cant be possible.
so answer is Thursday

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Bankim  (12 years ago)

That day was Thursday when B was speaking truth and C was telling a lie.

Is this solution Helpfull? Yes (3) | No (3)  

nitin madaan  (12 years ago)

the answer is Thursday
it is clear that a always speak the truth and b lies on Monday Tuesday Wednesday and c lies on Thursday Friday Saturday
so Thursday is the day when b says truth and c lies
so Thursday is the answer..

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vaibhav chhapparghare  (11 years ago)

CONSIDER THE FOLLOWING CASES
B C
1)TRUE(T) FALSE(F)

2)FALSE(F) TRUE(T)

SUN MON TUE WED THU FRI SAT
B (T) (F) (F) (F) (T) (T) (T)
C (T) (T) (T) (T) (F) (F) (F)
CASE 1:
IF B is true then the day must be among(THU FRI SAT SUN) and C is false then day must be among(THU FRI SAT)
but in B's statement he speak lie on the prievios day so the day must be THURADAY

CASE 2:
IF C is true then the day must be among( SUN MON TUE WED) and B is false then day must be among( MON TUE WED)
but in C's statement he speak lie on the prievios day no such day can be found where both case meet so this
case is eleminated

A case can be encountered when both speak truth ,but we cannot draw any conclusion from that

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