Question

Which of the following means ‘D is definitely daughter of A’?

• A. A ψ B #C # D
• B. C ψ A $ D ∈ B
• C. A ψ C $ B ∈ D
• D. B ψ A # C # D
• A. R $\psi$ $\# $ U S T
• B. U $\psi$ R $\# $ S $\# $ T
• C. U $\psi$ R $\in$ S $\# $ T
• D. K $\# $ R S S $\# $ T
• A. D $\# $ C S B $\# $ A $\in$ E
• B. A $\# $ B S D $\in$ E S C
• C. C $\# $ D S B $\# $ A S E
• D. B $\in$ E $\# $ C S E $\in$ A

Answer 1

The Correct Option is B

Step 1: Understand the Meaning of the Symbols

The symbols represent the following relationships:

• ψ means "mother of"
• ∈ means "sister of"
• # means "brother of"
• $ means "father of"

Step 2: Analyze the Options

• (a) A ψ B # C # D:
  A is the mother of B, B is the brother of C, and C is the brother of D.
  Does not directly indicate the relationship between A and D. ❌
• (b) C ψ A $ D ∈ B:
  C is the mother of A, A is the father of D, and D is the sister of B.
  This correctly indicates that D is the daughter of A. ✅
• (c) A ψ C $ B ∈ D:
  This mixes different relationships and lacks a clear connection. ❌
• (d) B ψ A # C # D:
  Also does not provide the required relationship directly. ❌

Step 3: Final Answer

The correct answer is (b) C ψ A $ D ∈ B.

Answer 2

Step 1: Understand the meaning of the symbols.
The symbols represent the following relationships: - $\psi$ means "mother of", - $\in$ means "sister of", - $\# $ means "brother of", - $\$ $ means "father of".

Step 2: Analyze the options.
(a) "R $\psi$ $\# $ U S T" does not provide the correct relationship for "R is brother of T".
(b) "U $\psi$ R $\# $ S $\# $ T" is the correct answer as it represents the family relationships where R is the brother of T.
(c) "U $\psi$ R $\in$ S $\# $ T" is incorrect as it implies a different relationship.
(d) "K $\# $ R S S $\# $ T" is also incorrect.

Step 3: Final Answer
The correct answer is (b) U $\psi$ R $\# $ S $\# $ T. Final Answer: The correct answer is (b) U $\psi$ R $\# $ S $\# $ T.

Answer 3

Step 1: Understand the meaning of the symbols.
The symbols represent the following relationships: - $\# $ means "brother of", - $\in$ means "sister of".

Step 2: Analyze the options.
(a) "D $\# $ C S B $\# $ A $\in$ E" is not the correct expression for "A is nephew of C".
(b) "A $\# $ B S D $\in$ E S C" is incorrect.
(c) "C $\# $ D S B $\# $ A S E" is the correct answer as it properly expresses that A is the nephew of C.
(d) "B $\in$ E $\# $ C S E $\in$ A" is incorrect.

Step 3: Final Answer
The correct answer is (c) C $\# $ D S B $\# $ A S E. Final Answer: The correct answer is (c) C $\# $ D S B $\# $ A S E.