# Section-1: Complex Arrangement Solved QuestionLogical Reasoning Discussion

Common Information

In an institute there are five identical rooms having different items in it. Every identical looking room has a name indicating its contents. The details of the contents and the name of each room are as given below.

Table below can be scrolled horizontally

Contents Name of Rooms
Two printers Pashupatti
Two computers Chandrachud
One printer and one computer Purnachandra
One bag and one computer Biswachakra

One day somebody in the institute changed the name plate of every room such that no room contains the name correctly explaining its contents.

 Q. Common Information Question: 2/2 If it is known that the room named Purnachandra does not contain either any printer or any computer, the room named Pashupatti does not contain any printer and the room named Chandrachud contains one computer and one bag, then which of the following will definitely be true if only one of the remaining rooms is opened?
 ✖ A. It will have at least one computer and printer. ✖ B. It will have two printers. ✖ C. It will have at least one computer. ✔ D. It will have at least one printer.

Solution:
Option(D) is correct

The room named Purnachandra does not contain either any printer or any computer, which means that it contains two bags (i.e. it is actually room Bagbahadur).

The room named Chandrachud contains one computer and one bag (i.e. it is actually room Biswachakra).

The room named Pashupatti does not contain any printer, which means this room is either room Chandrachud, or room Bagbahadur, or room Biswachakra. However, two of these three rooms are already taken. Hence, this is actually room Chandrachud and contains two computers.

The two remaining rooms are Pashupatti and Purnachandra (original name plates). Hence, one of the remaining two rooms contains two printers and the other room contains one computer and one printer. So, if only one of the remaining rooms is opened, it will have at least one printer.

Hence, option D is the correct choice.