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Standard XII

Mathematics

Fallacy

If, P Q means...

Question

If, P $ Q means P is the father of Q,
P # Q means P is the mother of Q and
P $*$ Q means P is the sister of Q.
Then how is Q related to N if N # L $P$ \ast $ Q.

Grandson

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Grand daughter

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Nephew

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Either (A) or (B)

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Solution

The correct option is D Either (A) or (B)
From the given information, it can be concluded that:
N is the mother of L, who is the father of P and Q.
P is a girl but no information is given about the gender of Q.
So Q is either N's grand daughter or grandson.
option D

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P

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P

#

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means

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is mother of

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, and

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Then how is

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Q. If

P $ Q means P is the father of Q;

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*

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then N # L

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\ast$ Q shows which of the relations of Q to N ?

Q. If [P @ Q] means [P is wife of Q], [P+Q] means [P is father of Q] and [P - Q] means [P is sister of Q] then in [G+ H - R @ D], how is G related to D?

Q. I. ‘P

$

Q’ means ‘P is the mother of Q’.
II. ‘P # Q’ means ‘P is the father of Q’.
III. ‘P @ Q’ means ‘P is the husband of Q’.
VI. ‘P % Q’ means ‘P is the daughter of Q’.
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Q. Following questions are based on the information given below.
(i)

^{'} P \times Q^{'}

means 'P is the father of Q'.
(ii)

^{'} P - Q^{'}

means 'P is the sister of Q'.
(iii)

^{'} P + Q^{'}

means 'P is the mother of Q'.
(iv)

^{'} P \div Q^{'}

means 'P is the brother of Q'.
In the expression

^{'} B + D \times M \div N^{'}

, how is M related to B?

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If, P $ Q means P is the father of Q, P # Q means P is the mother of Q and P ∗ Q means P is the sister of Q.Then how is Q related to N if N # L P\ast $ Q.

The correct option is D Either (A) or (B)From the given information, it can be concluded that:N is the mother of L, who is the father of P and Q. P is a girl but no information is given about the gender of Q.So Q is either N's grand daughter or grandson.option D

If, P $ Q means P is the father of Q,
P # Q means P is the mother of Q and
P $*$ Q means P is the sister of Q.
Then how is Q related to N if N # L $P$ \ast $ Q.

The correct option is D Either (A) or (B)
From the given information, it can be concluded that:
N is the mother of L, who is the father of P and Q.
P is a girl but no information is given about the gender of Q.
So Q is either N's grand daughter or grandson.
option D