NIELIT Scientific Assistant A 2020 November: 39
There are twelve persons named $\text{O, P, Q, R, S, T, U, V,W, X, Y and Z}$ who live in a multi-store apartment. The apartment has three floors and each floor has four rooms. These $12$ persons who live in a set of $12$ Rooms can be ... $U$? $O$ $Q$ $T$ $S$
There are twelve persons named $\text{O, P, Q, R, S, T, U, V,W, X, Y and Z}$ who live in a multi-store apartment. The apartment has three floors and each floor has four r...
