NIMCET 2015 — Reasoning PYQ

Step 1: Analyze the clues

1. C is wife of B: This gives us a married couple: $(C-)⟺(B+)$.

2. C is mother of F: Since B and C are a couple, B is the father of F.

3. D is grandfather of A and father of B: This means D belongs to the first generation. $D(+)$ is the father of $B(+)$.

4. F is granddaughter of E: We already know D is the grandfather. For there to be "two married couples," E must be the wife of D. So, $(D+)⟺(E-)$.

5. Grandchildren: D is the grandfather of A, and C is the mother of F. This implies A and F are siblings (the children of B and C).

Step 2: Family Tree Structure

• 1st Generation (Grandparents): $(D+)⟺(E-)$

• 2nd Generation (Parents): $(B+)⟺(C-)$

• 3rd Generation (Children): $A$ and $F(-)$

Step 3: Relationship Equations

Let's define the relationships using the tree:

• $\text{Parents of A and F}=B\text{ and }C$

• $\text{Since }C\text{ is the wife of B},C\text{ is the mother of A and F}.$

In the context of the question "What is C to A?":

Step 4: Conclusion

Since A and F are the children of the couple B and C, C is the mother of A.

Correct Option:

** (c) Mother**