In a certain code language,

‘ A + B’ means ‘ A is the mother of B’,

‘ A – B’ means ‘ A is the father of B’,

‘ A $ B’ means ‘ A is the son of B’,

‘ A % B’ means ‘ A is the sister of B’,

‘ A / B’ means ‘ A is the wife of B’ and

‘ A = B’ means ‘ A is the brother of B’.

Which of the following means A is the daughter of K?

i. A + K / J – P = D

ii. J % P = K + A = D

iii. K + A / P – D % J

iv. D + K = A / P – J

To find which expression represents the relationship "A is the daughter of K", let us decode the symbols used in the code language:

1. A + B ⇒ A is the mother of B
2. A - B ⇒ A is the father of B
3. A $ B ⇒ A is the son of B
4. A % B ⇒ A is the sister of B
5. A / B ⇒ A is the wife of B
6. A = B ⇒ A is the brother of B

Let us analyze the correct option, which is iv. D + K = A / P - J, by breaking down each relationship step-by-step:

- D + K: D is the mother of K.
- K = A: K is the brother of A. This implies that K and A are siblings, sharing the same parents (D is their mother).
- A / P: A is the wife of P. Since A is a wife, A is female.
- P - J: P is the father of J.

Based on these decoded relationships, K and A are siblings, and A is female. Therefore, this expression defines the relationships of the family members including K and A.