Question

Which two cities are industrial centers?

• A. M and P
• B. M and R
• C. O and P
• D. N and R

Answer 1

The correct option is B M and R

The given information can be analyzed as follows :
$\begin{array}{ccccccc}Type& M& N& O& P& Q& R\\ Historical& 6& 6& 3& 6& 6& 3\\ Industrial& 3& 6& 3& 6& 3& 3\\ HillStations& 3& 3& 3& 3& 3& 3\end{array}$
Since M and N are not alike and because M is industrial, N cannot be industrial but only a hill station. So, we put a cross for N across industrial. Clearly, M, O, Q and R are industrial Centers. So, the Ans is (b)