Instructions

These questions are based on the data given below.
There are only four members of a family viz., A, B, C and D and there is only one couple among them. When asked about their relationships, following were their replies:
a: A: B is my son. D is my mother.
b: B: C is my wife. Dis my father.
c: C: D is my mother - in - law. A is my daughter.
d: D: A is my grand - daughter. B is my daughter - in - law

Question 43

Who always speaks the truth?

Solution

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From the statement of A, we cannot state any information about C. Similarly B and C are also providing partial details. We can find out that Dis the grandfather and A is the grandson, and CB are the couple, thus statement B is a complete truth. 

We are able to set the relationship.

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Option D

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