Answer the next 2 questions based on the information given below:
- ‘A × B’ means ‘A is the mother of B’
- ‘A – B’ means ‘A is the father of B’
- ‘A ÷ B’ means ‘A is the sister of B’
- ‘A + B’ means ‘A is the brother of B’
Q1
MULTIPLE CHOICE
Which of the following represents ‘P is the niece of Q’?
-
-
-
-
-
Answer: C
Checking the given options,
Option (a): P is sister of Q.
Option (b): Q is the brother of K who is the father of T and T is the sister of P.
∴ It is not clear whether P is a male or female.
Option (c): Q is the sister of J, J is mother of P and P is sister of N.
∴ P is the niece of Q.
Hence, option (c).
Q2
MULTIPLE CHOICE
In the expression B × D – A ÷ C, how is A related to B?
-
-
-
-
-
Answer: B
B × D – A + C means B is the mother of D who is the father of A, who, in turn, is the sister of C.
Thus, A is the daughter of D, whose mother is B i.e. A is B’s grand-daughter.
Hence, option (b).
Answer the next 2 questions based on the information given below:
- ‘P || Q’ means ‘P is the mother of Q’
- ‘P * Q’ means ‘P is the husband of Q’
- ‘P & Q’ means ‘P is the daughter of Q’
- ‘P ∆ Q’ means ‘P is the father of Q’
Q3
MULTIPLE CHOICE
If A * B & C ∆ D, then how is A related to D?
-
-
-
-
-
Answer: B
A * B ⇒ A is husband of B.
B & C ⇒ B is daughter of C.
C ∆ D ⇒ C is father of D.
∴ A is the husband of B who is the sister of D i.e., A is D’s brother-in-law.
Hence, option (b).
Q4
MULTIPLE CHOICE
Which of the following represents ‘D is the brother of A’?
-
-
-
-
-
Answer: A
D is the brother of A means A is the son/daughter of D’s father and D is a male.
This is satisfied in option (a) i.e., A & B * C || D ∆ E.
Hence, option (a).