CRE 3 - Operator based Blood Relations | LR - Blood Relation
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’
Which of the following represents ‘P is the niece of Q’?
- A.
P ÷ Q – T + W
- B.
Q + K – T ÷ P
- C.
Q ÷ J × P ÷ N
- D.
None of these
- E.
Cannot be determined
Answer: Option C
Explanation :
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).
Workspace:
In the expression B × D – A ÷ C, how is A related to B?
- A.
Grandson
- B.
Grand-daughter
- C.
Son
- D.
Grand-father
- E.
None of these
Answer: Option B
Explanation :
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).
Workspace:
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’
If A * B & C ∆ D, then how is A related to D?
- A.
Sister-in-law
- B.
Brother-in-law
- C.
Sister
- D.
None of these
- E.
Cannot be determined
Answer: Option B
Explanation :
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).
Workspace:
Which of the following represents ‘D is the brother of A’?
- A.
A & B * C || D ∆ E
- B.
A & B * C & D
- C.
D ∆ E || C || A
- D.
A & B * C || D
- E.
None of these
Answer: Option A
Explanation :
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).
Workspace:
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