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Shubham Uniyal

· started a discussion

· 1 Months ago

Wrong answer (Question: 147660.2 )

More than one of the above (i.e. E and F) is the correct answer.

Question:

DIRECTIONS: These questions are based on the following information.


Seven persons – A, B, C, D, E, F and G – are from different cities among – X, Y and Z and each of them teaches a different subject viz, Maths, Physics, Biology, Social, Hindi, Telugu and Chemistry.


Only C and the person who teaches Physics are from city Y. A teaches Maths but is not from city Z. D and only one other person is from city X. E and F are from the same city but B and F are from different cities. The person who is from city Z does not teach either Chemistry or Biology. D does not teach Chemistry. Either E or F teaches Social and either F or D teaches Telugu.

Who among the following is/are from city Z?

Options:
A)

B

B)

E

C)

F

D) More than one of the above
E)

None of these 

Solution:

Ans: (d)

It is given that, only C and the person who teaches Physics are from city Y. A teaches Maths but is not from city Z. So, we can say that A is from city X. Also given D and only one other person is from city X (i.e. A). Hence only two persons belong to each city X and Y. That means the remaining three persons belong to city Z. E and F are from the same city, means F and F are from city Z and given, B and F are from different cities, hence B is from city Y and teaches Physics and G is from city Z. It is also given that the person from city Z does not teach either Chemistry or Biology and D does not teach Chemistry. Hence we can say that D teaches Biology and C teaches Chemistry. As either F or D teaches Telugu, F teaches Telugu and as either E or F teaches Social, F teaches Social and hence G teaches Hindi.


∴The final distribution is as shown below.

Person name

City

Subject

A

X

Maths

B

Y

Physics

C

Y

Chemistry

D

X

Biology

E

Z

Social

F

Z

Telugu

G

Z

Hindi


E and F are from city Z    

Knowledge Expert

· commented

· 1 Months ago

option(d) is correct.....
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