TechM Fresher Assessment – Online
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Mahindra
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Section 1 of 3 Aptitude
Revisit
Question # 27
Which option depicts one of the cases of Arthur, Bob and Charles being Truthful, Liar and Alternator(the one who
alternates between a lie and a truth in no order), based on the following scenario –
Arthur says, “I am the truthful one” while, Bob says, “Arthur is the truthful one”, and Carl says, “I am the alternator”.
Given : Arthur says. “I am the truthful one while, Bob says. “Arthur is the truthful one”, and Carl says I am the alternator
To Find : Who is who
Solution:
Let say Arthur is Truthful
Arthur says. “I am the truthful one which is Truth
Bob says. “Arthur is the truthful one Truth Hence Bob must be alternator
Carl Says – I am alternator – LIE hence Carl is Lier
Satisfy all condition.
Let say Arthur is Liar
Arthur says. “I am the truthful Which is Lie
Bob says. “Arthur is the truthful one again a lie Hence Bob is alternator
Carl Says – I am alternator which must be Truth but can not be
Hence this case not possible
Let say Arthur is alternator
case 1 : Bob is Truthful
Bob says. “Arthur is the truthful one” is a Lie Hence not possible
Case 2 : Carl is Truthful
Carl Says – I am alternator which is not possible
Hence this case not possible
So
Arthur is Truthful
Arthur says. “I am the truthful one which is Truth
Bob says. “Arthur is the truthful one Truth Hence Bob must be alternator
Carl Says – I am alternator – LIE hence Carl is Liar
Satisfy all condition.
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