NIELIT 2017 July Scientist B - Section A: 56

Question

Three ladies $X, Y$ and $Z$ marry three men $A, B$ and $C$. $X$ is married to $A$, $Y$ is not married to an engineer, $Z$ is not married to a doctor, $C$ is not a doctor and $A$ is a lawyer. Only monogamous relationships are permitted. Then which of the following statements is correct?

• A. $Y$ is married to $C$ who is an engineer
• B. $Z$ is married to $C$ who is a doctor
• C. $X$ is married to a doctor
• D. None of the above options

Answer 1

$\textrm{Option A is wrong, why because the question is saying Y is not married with an engineer.}$

$\textrm{Option B is also wrong, Z is not married to Doctor.}$

$\textrm{Option C is also wrong, X is married to A who is a lawyer (Given in question).}$

$\textrm{Option D is true.}$

                $\textrm{X$\Leftrightarrow$A(Lawyer)}$

                $\textrm{Y$\Leftrightarrow$B(Doctor)}$

                $\textrm{Z$\Leftrightarrow$}C(Engineer)$

Comments

In the question, it is NOT given that there are only 3 professions, so we can’t and shouldn’t assume just because Y can’t be married to an Engineer means she must have married a doctor. Same goes for Z too

 

We can only say Y can marry B or C whose profession we don’t know !! Same goes for Z