‘E + B’ means ‘E is the husband of B’

‘E – B’ means ‘E is the daughter of B’

‘E $ B' means ‘E is the father of B’

‘E # B’ means ‘E is the mother of B’

If ‘N + D # Z $ B’, then how is N related to B?

To determine how N is related to B from the expression N + D # Z $ B, we can break down the relationships step-by-step using the given definitions:

1. N + D:
According to the definition, ‘E + B’ means ‘E is the husband of B’. Therefore, N is the husband of D.
This implies that N is male, D is female, and they are married to each other.

2. D # Z:
The definition states that ‘E # B’ means ‘E is the mother of B’. Thus, D is the mother of Z.
Since N is married to D, N is the father of Z.

3. Z $ B:
The definition states that ‘E $ B’ means ‘E is the father of B’. Thus, Z is the father of B.

By combining these steps:
- Z is the father of B.
- N is the father of Z.
- Since N is the father of B's father (Z), N is the paternal grandfather of B.