Question

J, K, L, M, N, O and P live on seven different floors of a building but not necessarily in the same order. The lower most floor of the building is numbered 1, the one above that is numbered 2 and so on till the topmost floor is numbered 7. Each one of them also likes a different subject namely- English, History. Commerce, Biology, Accounts, Geography and Computer, (but not necessarily in the same order).

Which of the following statements is true with respect to the given arrangement?

• A. The one who likes Computer lives immediately below
• B. O likes History
• C. None of the given options is true
• D. Only four people live between M and P
• E. P lives immediately below N

Answer 1

The correct option is C None of the given options is true

Seven people lives on seven different floor of a building. Each one of them likes a different subject of his choice.
According to the question.
J lives on an odd numbered floor except floor number 3.
Possibility for J $\to$ (1,5,7)
The one who likes Account lives immediately above J.
$\frac{?}{\underset{–}{J}}\to Account$
Only two people live between M and the one who likes Account.
$\underset{–}{M}$ ____ ____$\frac{}{Account}$
The one who likes history lives on an odd-numbered floor above M.
$\frac{?}{\uparrow }\to HistoryM$
Only three people live between L and the one who likes History.
$\frac{?}{History}----\underset{–}{L}$
The one who likes Commerce lives immediately above L
$\frac{?}{L}\to Commerce$
P lives on an odd numbered floor.
Possiblity for P(1,3,5,7). One who likes English lives immediately above the one who likes computer.
$\underset{–}{English}\underset{–}{Computer}$
Only one person lives between K and N and K lives on one of the floors above N.
$\underset{–}{k}-\underset{–}{N}$
J does not like Biology and N does not like Commerce.
According to the given information, persons, their corresponding floor and subjects are given below.
$\begin{array}{ccc}Floors& Persons& Subjects\\ 7& P& History\\ 6& O& English\\ 5& M& Computer\\ 4& K& Commerce\\ 3& L& Biology\\ 2& N& Accounts\\ 1& J& Geography\end{array}$

None of the given options is true.