Question

There are seven friends A,B,C,D,E,F and G in a seven-floor building. Th) ground floor is no. 1, the floor above it is
no. 2 and so on.
E does not live on an even numbered floor. G does not live on the topmost floor. Only one person lives between E and
G. A does not live on even numbered floor and does not live below F.D does not live immediately above or
immediately below G. There two floors between D and E. Both B and C live on even-numbered floor. G and C live in
between the two floors. Flives on floor number 5.
Option 1​

Answer 1

Answer:-

Given:

Seven friends A , B , C , D , E , F , G live in a seven floor building (not in exact order).

the ground floor is No. 1 , the above is No. 2 .....

The main data given is ,

• F lives in 5th floor.

So, we have six friends now.

It is given that,

• E does not live in an even numbered floor.

That means , E lives in one of the odd numbered floors.

i.e., E lives in 1st or 3rd or 5th or 7th floors.

• G doesn't live in the topmost floor.

That means, G is not living in 7th floor.

And,

• One person lives between E and G

E is living in odd numbered floor . So, G also lives in odd numbered floor since there's only one person who lives between them.

• A does not live in even numbered floor and doesn't live below F.

Means , A is living in the floors which are above F.

F is in 5th floor , So A must living in 6th or 7th floors.

It is also given that , A does not live in an even numbered floor. So , A would be living in 7th floor.

Now, we have 5 friends i.e., B , C , D , E , G

Again,

• D does not live immediately above or below G.

So, D must not be the neighbour if G.

• There are two floors between D and E.

E is living in the odd numbered floor. So, D must be living in the even numbered floor since there are two floors between them.

Hence,

• B , C , D are living in even numbered floors and E , G are living in odd numbered floors.

Also given that,

• There are two floors between D , E.

D lives in even numbered floor and E lives in odd numbered floor.

So, The neighbour of D must be living in odd numbered floor and Neighbour of E must be living in Even numbered floor.

D is not the neighbour of G and E.

We already have one more friend F.

Hence, D is the neighbour of F and lives in 6th floor since F lives in odd numbered floor (5th floor).

If D lives in 6th floor , then E lives in 3rd floor since there are two floors between D and E. E does not live above D Because there is only 1 floor above D which A lives.

Now,

One person lives between E and G.

As ,E lives in 3rd floor , G lives in 1st floor .

B , C are left now.

It is given that,

• G , C live in between two floors.

That means,

There are two floors between G , C.

As G lives in 1st floor , C lives in 4th floor since there are two floors between them.

Hence , The remaining person B lives in the 2nd floor.

________________________________

And finally,

The correct seating arrangement will be :

7 ⟶ A

6 ⟶ D

5 ⟶ F

4 ⟶ C

3 ⟶ E

2 ⟶ B

1 ⟶ G

Answer 2

$\huge{\boxed{\rm{Question}}}$

There are seven friends A,B,C,D,E,F and G in a seven-floor building. The ground floor is no. 1, the floor above it is no. 2 and so on. E does not live on an even numbered floor. G does not live on the topmost floor. Only one person lives between E and G. A does not live on even numbered floor and does not live below F .D does not live immediately above or immediately below G. There two floors between D and E. Both B and C live on even-numbered floor. G and C live in between the two floors. Flves on floor number 5.

$\large{\boxed{\boxed{\sf{All \: given \: data \: with \: full \: solution}}}}$

• This is not in proper / exact order that seven friends A , B , C , D , E , F and G.

• The ground floor is number 1 , the floor above is number 2 and so on.

• E does not live in an even numbered floor of the building ; that's mean E lives in an odd numbered floor.

It's also cleared that E live in 1st / 3rd / 5th / 7th number of floor of the building.

• G does not live in topmost floor of the building ; means he is not living on 7th floor that is top.

And

• A person of left live between E and G .

E and G are living in odd numbered floor. So, it's cleared that a person is a person is living between them.

• A does not live in even numbered floor and it's doesn't live below F.

Hence, it's cleared that A is living in the floor above F.

And a important thing that F is live in the 5th floor. Also, A must living in 6th or 7th floor.

• A isn't line in an even number of floor. Hence he is living in floor 7th of the building.

Now, we know that 5 friends are left B , C , D , E and G.

Now,

• D doesn't live immediately above or below the person G.

Since, D not be the neighbour if G.

• There are 2 floors between D and E.

E is living in the odd numbered floor. Since, D could be living in the even numbered floor. Hence, we know that there are 2 floors between them.

• B , C , D are living in even numbered floor. E and G are living in odd numbered floor.

• There are 2 floors between D and E.

D lives in even numbered floor and E lives in odd numbered floor.

D isn't the number of G and E.

Hence, D is the neighbour of F and lives in 6th floor since F lives in 5th floor ( odd numbered floor )

Let's D lives in 6th floor, then E lives in 3rd floor since there are 2 floors between D and E. E isn't live above D because there is only just a floor above D which A lives.

A person lives between E and G.

As E lives in 3rd floor.

G lives in 1st floor.

It's given that G and C live between 2 floors.

• There are 2 floors between G and C.

As, G lives in 1st floor , C lives in 4th floor since, 2 floors between them.

Hence, the remaining person B lives in floor 2nd.

$\large{\boxed{\boxed{\sf{Important \: data}}}}$

• In the 5th floor of the building F lives.

We have done this question now. The exact order is given below !!

① - G

② - B

③ - E

④ - C

⑤ - F

⑥ - D

⑦ - A