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vikas Thakur

· started a discussion

· 1 Months ago

wait (Question: 139338.0 )

why not A

Question:

DIRECTIONS: Read the following information to answer the questions that follow.

 

‘P © Q’ means ‘Q is the brother of  P’.

‘P # Q’ means ‘P is the daughter of Q’.

‘P = Q’ means ‘Q is the sister of P’.

‘P £ Q’ means  ‘P is the son of Q’.

‘P«Q’ means  ‘P is the father of Q’.

‘P @ Q’ means ‘P is the mother of Q’.

Which of the following is a correct conclusion drawn from the expression  ‘Q £ N @ S © M = P’ ?
Options:
A) S is the brother of P.    
B) N has two sons and two daughters.
C) S is the sister of Q. 
D) P is the sister of Q.
Solution:

Ans: (d)

Make a family tree as shown here.


Look at the given expression carefully. The gender of 'S' is not known therefore (1), (2) and  (3) are not necessarily true. (4) is true.


Knowledge Expert

· commented

· 1 Months ago

Dear student,
Given answer is correct
Please read the Question carefully.
S is not defined.


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