TCS
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Numerical Ability
Permutation and Combination
8. On door A - It leads to freedom
On door B - It leads to Ghost house
On door C - door B leads to Ghost house
The statement written on one of the doors is wrong.
Identify which door leads to freedom.
a. A
b. B
c. C
d. None
Read Solution (Total 20)
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- 1st Case:if 'A' is wrong,then answer is none
2nd case:if 'B' is considered as wrong,then obviously 'C' is correct,which tells that "Door B leads to ghost House".But we considered "B doesn't lead to ghost house".Both 'B' & 'C' contradicts this assumption.Hence, 'B' & 'C' cannot be wrong. Only 'A' can be wrong.So answer:None - 10 years agoHelpfull: Yes(28) No(14)
- lets consider door A is wrong then A leads to ghost
on door B written is it leads to ghost
and on door c it is written door B leads to ghost house,henc C leads to freedom
in the same way assume B is wrong,means lead to freedm but on door c written door B leads to ghost house,it is contradiction
last case if we assume C is wrong,the written on door B is also becoming wrong
so our ansr is C lead to freedm which comes from 1st case where we assume A is wrong
- 10 years agoHelpfull: Yes(21) No(0)
- ans is c.C
- 10 years agoHelpfull: Yes(9) No(10)
- answer is c
only one is wrong and that is A
since b and c are right it means b has ghost
and hence c is only left for the freedom - 10 years agoHelpfull: Yes(6) No(3)
- none
because a is the wrong statement so no door leads to freedom - 10 years agoHelpfull: Yes(5) No(0)
- can any1 clearly explain this sum ??
- 9 years agoHelpfull: Yes(4) No(0)
- plz explain how it is c.
- 10 years agoHelpfull: Yes(3) No(1)
- the ans is a.
- 10 years agoHelpfull: Yes(2) No(3)
- none is answer
- 9 years agoHelpfull: Yes(1) No(2)
- one of the given statement is wrong. if door A leads to freedom it is true and other 2 doors also true so A cannot be a door leads to freedom.
if we take A as wrong the other two are which says door B leads to ghost house.
so we have A and B leads to ghost house then the other leads to freedom.hence the answer is C which leads to freedom. - 7 years agoHelpfull: Yes(1) No(0)
- plz giv me d crct sltn
- 10 years agoHelpfull: Yes(0) No(0)
- if a is wrong , these(a,b,c) are go to ghost house so a is not wrong. if c is wrong, a goes to freedom,b goes to ghost house, c(b ghost) but c tells wrong so b goes to ghost house. Answer: a goes to freedom
- 9 years agoHelpfull: Yes(0) No(1)
- consider all the statement one by one-
if Statement A is wrong -it means it doesnot leads to freedom,and as only one statement can be wrong Statement B n C r correct nd both of them leads to ghost house.
statement B & C are relational so if one is wrong then other automatically gets wrong. so none of the answer leads us to definite solution ....
So none will be the answer - 9 years agoHelpfull: Yes(0) No(0)
- Case 1: A, B are true. In this case, Statement C also correct. So contradiction.
Case 2: B, C are true. In this case, B leads to ghost house and C confirms it. Now A is wrong. So door A does not lead to freedom. So Door C leads to freedom. - 8 years agoHelpfull: Yes(0) No(0)
- c because C statement is wrong
- 8 years agoHelpfull: Yes(0) No(0)
- B. Door C written is wrong
- 8 years agoHelpfull: Yes(0) No(0)
- Answer is 'C'
- 8 years agoHelpfull: Yes(0) No(0)
- the answer is c
- 7 years agoHelpfull: Yes(0) No(0)
- Case 1: A, B are true. In this case, Statement C also correct. So contradiction.
Case 2: B, C are true. In this case, B leads to ghost house and C confirms it. Now A is wrong. So door A does not lead to freedom. So Door C leads to freedom. - 7 years agoHelpfull: Yes(0) No(0)
- ans:c
because a is wrong statement the obiviously remaining door is c - 7 years agoHelpfull: Yes(0) No(0)
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