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SBI PO 07 May 2017 Papers

REASONING

Directions (66–70) :
Study the following information carefully and answer the questions given below :
In an apartment, eight persons,i.e., D, E, F, G, H, I, J and K live on different floorsbut not necessarily in the same order. The lower most floor of the building is numbered 1 and the topmost floor of the building is numbered 8. They are from different stream of Engineering i.e.,Chemical Engineering Instrumentation Engineering, Software Engineering,AeronauticalEngineering,Mechanical Engineering, Electrical Engineering, Automobile Engineering,and Civil Engineering.
The one who lives on fourth floor is specialized in Mechanical Engineering. D lives on odd numbered floor but above 3rd floor. The number of personsbetween D and the one who is specialized in Electrical Engineering is same as number of persons between D and I. The one who is specialized in Instrumentation Engineering lives on lower most floor. K lives on an even numbered floor and he is specialized in AutomobileEngineering.There are two floors between E and H and E lives above to H. E is specialized in Aeronautical Engineering.J lives just above the one who is specialized in Aeronautical Engineering.The number of floors between the one who is specialized in AeronauticalEngineering and Mechanical Engineering is two. The one who is specialized in Civil Engineering lives on odd numbered floor. The number of floors between the one who is specialized in Chemical Engineering and J is four. The one who is specialized in Aeronautical Engineeringlives on an odd numbered floor. The number of floors between the one who is specialized in Civil Engineering and the floor on which F lives is same as the number of floors between F and G. I lives below the floor on which D lives.

Question : 66

Total: 100

How many persons live between the person who is specialized in Chemical Engineering and the one who is specialized in Electrical Engineering?

Six
One
Four
Two
None of these

Validate

Solution: 👈: Video Solution

(66–70) :
⇒ The one who lives on fourth floor is specialised in Mechanical Engineering. The one who is specialised in Instrumentation Engineering lives on floor number one.
⇒ D lives on either floor number five of floor number seven ashe lives on an odd numbered floor above floor number three.
⇒ E is specialised in Aeronautical Engineering and he lives on an odd numbered floor. The number of floors between the one who is specialised in Aeronautical Engineering and Mechanical Engineeringis two.Thus, E lives on floor number seven as he cannot live on floor number one. Now, D would occupy floor number five. There are two floors between E and H. Therefore, H would occupy floor number four. J lives just above who is specialised in Aeronautical Engineering. Thus, J would occupy floor number eight. The one who is specialised in Chemical Engineering would occupy floor number three as the number of floors between the one who is specialised in Chemical Engineering and J is four.
On the basisofabove information, we can construct the following table :

Floor Number	Person	Specialisation
8	J	Electrical Engineering
7	E	Aeronautical Engineering
6
5	D
4	H	Mechanical Engineering
3		Chemical Engineering
2
1		Instrumentation Engineering

⇒ The one who is specialised in Civil Engineering lives on an odd numbered floor. Thus, Dis specialised in Civil Engineering.The number of floors between the one who is specialised in Civil Engineering and the floor on which F lives is same as the numberof floors between F and G. Therefore,F would occupy floor number three and G would occupy floor number one.
⇒ I lives below the floor on which D lives. Therefore, I would occupy floor number two.
⇒ The number of persons between D and who is specialised inElectrical Engineering is same as the number of persons between D and I. This
statement also confirms that⇒ lives on floor number two.
⇒ K lives on an even numbered floor and he is specialised in Automobile Engineering. The vacant even number floorissix.
⇒ Now, only one specialisation, i.e., Software Engineering remains unspecified. Therefore, I has specialisation in Software Engineering.
Now, we have information to construct the complete table as follows :

Floor Number	Person	Specialisation
8	J	Electrical Engineering
7	E	Aeronautical Engineering
6	K	Automobile Engineering
5	D	Civil Engineering
4	H	Mechanical Engineering
3	F	Chemical Engineering
2	I	Software Engineering
1	G	Instrumentation Engineering

F is specialised in Chemical Engineering and he lives on Floor Number three.
J is specialised in Electrical Engineering and he lives on the topmost floor, i.e., floor number eight.
Four persons – E, K, D and H– live between the floors of J andF.

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