Latest TCS Aptitude Question SOLUTION: 2. Five college students met at a party and exchanged gossips. Uma said, “Only one of us is lying”. David said, “Exactly two of us are lying”. Thara said, “Exactly 3 of

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(#M40157593) TCS Logical Reasoning question Keep an EYE

2. Five college students met at a party and exchanged gossips. Uma said, “Only one of us is lying”. David said, “Exactly two of us are lying”. Thara said, “Exactly 3 of us are lying”. Querishi said, “Exactly 4 of us are lying”. Chitra said “All of us are lying”. Which one was telling the truth?
a)David
b)Querishi
c)Chitra
d)Thara

Asked In TCS lav (7 years ago)

Unsolved Read Solution (11)

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Read Solution (11) :

sruthi  (7 years ago)

As all are contradictory statements, it is clear that ONLY one of them is telling the truth. So remaining 4 of them are lying. Querishi mentioned that exactly 4 are lying. So, he is telling the truth.

Is this solution Helpfull? Yes (13) | No   

PATAKAMSETTI LAKSHMI PRASANNA  (7 years ago)

option (b)

Is this solution Helpfull? Yes (5) | No (1)  

Basant  (7 years ago)

C)chitra as she is saying all of us are lying i.e indirectly she is telling truth

Is this solution Helpfull? Yes (5) | No (5)  

chandni khatoon  (7 years ago)

ans: Querishi
He said " Exactly 4 of us are lying"
means He is right and others are lying

Is this solution Helpfull? Yes (3) | No   

Ankit Abinash  (7 years ago)

Chitra . As she is saying that "All of us are lying" it means that every one is lying and she herself admits that too. This shows that she is telling the truth.

Is this solution Helpfull? Yes (2) | No (2)  

Rahul  (7 years ago)

Quershi because 4 is lying so He is saying truth

Is this solution Helpfull? Yes (1) | No (1)  

neeraj  (7 years ago)

no two students can be right (as it gives contradiction), so 4 of them are lying and one is telling the truth

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Anwesha Maharana  (7 years ago)

Chitra is telling the truth as she says "All of us are lying", which includes herself too.

Is this solution Helpfull? Yes (1) | No (1)  

ayush  (6 years ago)

As all are contradictory statements, it is clear that ONLY one of them is telling the truth. So remaining 4 of them are lying. Querishi mentioned that exactly 4 are lying. So, he is telling the truth.
Explanation: Let us 1st assume that Uma is telling the truth. Then according to her only one is lying. But if only one is lying then all the others’ statements are contradicting the possibility. In the same way all the other statements should be checked. If we assume the Querishi is telling the truth, according to him exactly 4 members are lying.

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varsha  (5 years ago)

MR QUERESHI IS RIGHT

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Anil Singh Tomar  (3 years ago)

Querishi
Because 4 were wrong and querishi was right

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