The correct option is B Wednesday
There are seven professors A, B, C, D, E, F and G of three different subjects English, Mathematics and History to evaluate papers. Each professor stays in different buildings P, Q, R, S, T, V and W.
Condition:-
At least two persons evaluate the papers in each subject.
According to the question, A evaluates English papers only with E. It means A and E both evaluate English papers. The word 'Only' indicates that no other evaluates English papers besides them.
A stays in building R.
D stays in building W.
D does not evaluate maths paper means it evaluated History papers.
G and F evaluate same papers.
B and C do not evaluate the paper in the same subject.
It is given that, F stays in building P but does not evaluate History papers.
It is clear that F evaluates Mathematics papers, so G and F evaluate Maths papers.
C stays in building T.
F stays in building P.
ProfessorsSubjectsBuildingsAEnglishRB−−C−TDHistoryWEEnglish−FMathematicsPGMathematics−
The one who stays in building V evaluates History paper.
B has no subject and no building, so B evaluates History papers and lives in building V.
B → History → V
It is given that, B and C do not evaluate papers of the same subject.
So, C evaluates paper of Mathematics
C → Mathematics → T
Those who evaluate English paper do not stay in building Q.
So. it is clear that G stays in building Q.
We have only one building left that is S, so it is clear that:-
E → English → S
Now on the basis of above informatione we get:-
ProfessorsSubjectsBuildingsAEnglishRBHistoryVCMathematicsTDHistoryWEEnglishWFMathematicsPGMathematicsQ
Q's weekly off is on Wednesday.