Question

$A,B,C,D,E$ and $F$ are six families living in different houses in a row. $F$ and $D$ are neighbours of $B,E$ is neighbour of $A$ and $C$. $A$ is not a neighbour of $F$ and $D$ also if $C$ is not a neighbour of $D$, then who is the neighbour of $F$?

• A. $B$ and $C$
• B. $B$ and $F$
• C. $B$ and $D$
• D. Only $B$

Answer 1

The correct option is A $B$ and $C$

Given that $A,B,C,D,E,F$ are six families living in different houses in a row

$Constraint1$

$F$ and $D$ are neighbours of $B$

$\Rightarrow$ $F,B,D$ in the order

$Constraint2$

$E$ is neighbour of $A$ and $C$

$\Rightarrow$$A,E,C$ in order

$Constraint3$

$A$ is not a neighbour of $F$ and $D$ and $C$ is not a neighbour of of $D$

So the possible arrangement is $A,E,C,F,B,D$ in a row

$\therefore$ $BandC$ are the neighbours of $F$