Each of P. Q. R. S. W, X. Y and Z has been married at most once. $\mathrm{X}$ and $\mathrm{Y}$ are married and have two children $\mathrm{P}$ and $Q . \mathrm{Z}$ is the grandfather of the daughter $\mathrm{S}$ of $\mathrm{P}$. Further. $\mathrm{Z}$ and $\mathrm{W}$ are married and are parents of $R$. Which one of the following must necessarily be FALSE?

(A) $X$ is the mother-in-law of $R$

(B) $\mathrm{P}$ and $\mathrm{R}$ are not married to each other

(C) $\mathrm{P}$ is a son of $\mathrm{X}$ and $\mathrm{Y}$

(D) $\mathrm{Q}$ cannot be married to $\mathrm{R}$

Each of P. Q. R. S. W, X. Y and Z has been married at most once. $\mathrm{X}$ and $\mathrm{Y}$ are married and have two children $\mathrm{P}$ and $Q . \mathrm{Z}$ is the grandfather of the daughter $\mathrm{S}$ of $\mathrm{P}$. Further. $\mathrm{Z}$ and $\mathrm{W}$ are married and are parents of $R$. Which one of the following must necessarily be FALSE?

(A) $X$ is the mother-in-law of $R$

(B) $\mathrm{P}$ and $\mathrm{R}$ are not married to each other

(C) $\mathrm{P}$ is a son of $\mathrm{X}$ and $\mathrm{Y}$

(D) $\mathrm{Q}$ cannot be married to $\mathrm{R}$

1 Answer

127 votes

(D) $\mathrm{Q}$ cannot be married to $\mathrm{R}$

127 votes

127