Wrong question or wrong solution (Question:948302.0)

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Sharvalik Singh

· started a discussion

· 1 Months ago

Wrong question or wrong solution (Question:948302.0)

In 4th point of question 76 it is given that seerat stays between shubh and roli but in solution it is totally different... How?

Question:

Suhani, Seerat, Shaurya, Shubh, Roli, Reshu and Neelam stay in a seven floor apartment (first floor to seventh floor). Each floor has different Prime number of rooms.

i) The floor at which Seerat lives has eleven rooms

ii) Roli lives below Reshu

iii) There are five rooms at second floor.

iv) Seerat stays exactly between Shubh and Roli. Shaurya stays on the floor with the maximum number of rooms and these are 17 rooms.

v) Suhani lives at first floor. Shubh stays above Shaurya.

vi) Sum of the number of rooms at 7^th floor and 6^th floor is 30

vii) Sum of the number of rooms on the floors on which Roli and Suhani live is 5.

viii) The floor at which only 2 rooms are there is just below the floor at which 7 rooms are there.

How many rooms are there at first floor?

Options:

Solution:

Ans: (c)

Suhani lives at first floor. There are five rooms at second floor. Sum of the number of rooms at 7th floor and 6th floor is 30. Only possible case is that 7th floor and 6th floor has 17 rooms and 13 rooms respectively or vice versa.

Number of floors at which Shaurya lives is maximum i.e. 17, Shubh stays above Shaurya. So Shaurya cannot stay at 7th floor. Hence Shaurya stays at 6th floor and Shubh stays at 7th floor.

Floor No	Person	Number of rooms
7	Shubh	13
6	Shaurya	17
5	-	-
4	-	-
3	-	-
2	-	5
1	Suhani	-

Seerat stays exactly between Shubh and Roli. So the only case possible is:

Floor No	Person	Number of rooms
7	Shubh	13
6	Shaurya	17
5	Seerat	11
4	-	-
3	Roli	-
2	-	5
1	Suhani	-

Sum of the number of rooms at the floor on which Roli and Suhani lives is 5. So the number of rooms on the floor at which Roli and Suhani live is 2 and 3 respectively or vice versa.

Floor No	Person	Number of rooms
7	Shubh	13
6	Shaurya	17
5	Seerat	11
4	-	7
3	Roli	2/3
2	-	5
1	Suhani	3/2

The floor at which only 2 rooms are there is Marvelust below the floor at which 7 rooms is there. Roli lives below Reshu. So the above case can be modified as follows:

Floor No	Person	Number of rooms
7	Shubh	13
6	Shaurya	17
5	Seerat	11
4	Reshu	7
3	Roli	2
2	Neelam	5
1	Suhani	3

3 room is there at first floor.

Sharvalik Singh

· commented

· 1 Months ago

Ok i got my answer thanks

Wrong question or wrong solution (Question:948302.0)

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