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Question

Directions:- Study the following information carefully to answer the question given below.

P, Q, R, S, T, V, W and Z are eight friends studying in three different engineering colleges - A, B and C in three disciplines - Mechanical, Electrical and Electronics with not less than two and not more than three in any college.
Not more than three of them study in any of three disciplines. W studies Electrical in college B with only T who studies Mechanical.
P and Z do not study in college C and study in same discipline but not Electrical. R studies Mechanical in college C with V who studies Electrical. S studies Mechanical and does not study in the same college where R studies. Q does not study Electronics.

Which of the following combinations of college - student - specialisaton is correct?

A
C - R - Electronics
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B
A - Z - Electrical
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C
B - W - Electronics
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D
B - W - Electrical
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E
B - Z - Electronics
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Solution

The correct option is D B - W - Electrical
Friends P, Q, R, S, T, V, W and Z study in different engineering colleges A, B and C in three disciplines - Mechanical, Electrical and Electronics.
Conditions:-
(i) Not less than two and not more than three student study in any of the three colleges.
(ii) Not more than three students study in any branch of Engineering.
W studies Electrical in college B with only T who studies Mechanical.
College B W, T
P and Z do not study in college C and study in same discipline but not Electrical.
College AP, Z
Either Mechanical or Electronics
R studies Mechanical in college C with V who studies Electrical.
RMechanicalCollege CVElectricalCollege C
S studies Mechanical but not in college C
SMechanicalCollege A
We have, total students in different discipline given as
MechanicalR,S,TElectricalW,VElectronics
P and Z may be either in Mechanical or Electronics but we have reached the maximum limit in mechanical discipline.
Therefore, P, Z Electronics
Q does not study Electronics.
So, Q Electrical
Now, we summarise the above information as
MechanicalR,S,TElectricalW,VElectronicsP,Z
Now, according to college
College AP,Z,SCollege BW,TCollege CR,V
So, Q comes in college C.
the above information in tabular form is shown as
StudentsCollegesDisciplinesPAElectronicsQCElectricalRCMechanicalSAMechanicalTBMechanicalVCElectricalWBElectricalZAElectrics
Now, we answer the following question on the basis of above table:-

B - W - Electrical combination is correct.

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