Home » Standard Reasoning Questions with Explanation for SBI Clerk 2018 | Day-2

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Direction (1-5): Study the information given below and answer the questions based on it.

Eight persons A, B, C, D, H, I, J and K are staying in an eight storey building. Lowermost floor is numbered 1 and topmost floor is numbered 8. Two consecutive alphabets naming persons cannot stay to adjacent floor i.e. A cannot stay adjacent floors to B, B cannot stay adjacent floors to A or C but D can stay adjacent floor to H. Their ages are i.e. 17, 22, 25, 28, 29, 33, 34 and 40, not necessarily in the same order.

(Note: The person whose age is an odd number is staying at odd numbered floor and the person whose age is an even number is staying at even numbered floor). D is 33 years old. The number of person is staying above D is same as below H. C lives just above the one who is 17 years old. Two persons are staying between H and the one who is 17 years old. H lives above the one who is 17 years old. A is 29 years old. Only one person is elder to K. One person stays between B and K. K lives above B. B is elder to K but doesn’t stay on 2^nd floor.

Who among the following is the youngest person?

How many persons are staying between B and the one who is 22 years old?

Which of the following combination is correct?

K-6^th floor
C-25 years old
A-3^rd floor
I-28 years
J-5^th floor

Who among the following lives on 2^nd floor?

C
The one who is 40 years old
H
The one who is 22 years old
K

What is the sum of the age of I and J?

Direction (6-10) In each of the questions below are given some conclusions followed and some statements are given. You have to take the given conclusions to be true even if they seem to be at variance from commonly known facts and then decide from which of the statements given definitely true.

Conclusions:

Some pens are not pencils.

Some boxes are pages.

All pencils are not boxes.

Statements:

Some pages are boxes, no box is a pen, all pens are pencils.
Some pages are pens, no box is a pencil, all pencils are pens.
Some pages are boxes, all pencils are boxes, all pencils are pens.
Some pages are boxes, no box is a pencil, all pencils are pens.

Statement I follow
Statement II follows
Statement III follows
Statement IV follows
None of these

Conclusions:

Some letters are words.

Some letters are symbols.

No number being a symbol is a possibility.

Statements:

Some words are letters, all letters are numbers, some symbols are letters.
Some words are letters, all letters are numbers, some symbols are numbers.
Some words are numbers, all numbers are letters, some symbols are letters.
Some words are numbers, all numbers are letters, some symbols are numbers.

Statement I follow
Statement II follows
Statement III follows
Statement IV follows
None of these

Conclusion:

No coat is a shirt.

Some pants are definitely not coats.

Statements:

No coat is a shoe, some shoes are shirts, some pants are not shirts.
All coats are shoes, no shoe is a shirt, some shoes are not pants.
All shoes are coats, no shoe is a pant, no shirt is a shoe.
No coat is a shoe, all shirts are shoes, some shirts are pants.
None of these

Statement I follow
Statement II follows
Statement III follows
Statement IV follows
None of these

Conclusion:

No exam is a paper. All exams are marks.

Statements:

Some marks are not papers. Some ranks are marks. All exams are ranks.
No paper is a rank. All exams are ranks. All ranks are marks.
Some marks are not papers. All marks are ranks. Some exams are ranks.
All marks are ranks. No exam is a rank. Some marks are not papers.
Both II and IV

Statement I follow
Statement II follows
Statement III follows
Statement IV follows
Both II and IV

Conclusion: All cars are bikes. Some trucks are not trains.

Statements:

Some cars are not trains. All trains are bikes. No bike is a truck.
All cars are trains. All trains are bikes. All trucks are bikes.
All cars are trucks. All trucks are bikes. Some cars are not trains.
No train is a car. All cars are trucks. All trucks are bikes.
Both III and IV

Statement I follow
Statement II follows
Statement III follows
Statement IV follows
Both III and IV

Explanation

Direction (1-5)

C lives just above the one who is 17 years old. Two persons are staying between H and the one who is 17 years old. As we know the one who is 17 years must live on an odd number floor and we know that H lives above the one who is 17 years old. So the one who is 17 years old can stay on 1^st, 3^rd and 5^th floor.

Case 1: if the one who is 17 years old stays on 3^rd floor-

Then H lives on 6^th floor and we know that the number of person is staying above D is same as below H. Five persons are staying below H so D must stay on 3^rd floor but D is 33 years old and the one who is 17 years old stays on 3^rd floor so this case gets rejected.

Case 2: if the one who is 17 years old stays on 5^th floor-

Then H lives on 8^th floor and we know that the number of person is staying above D is same as below H. Seven persons are staying below H so D must stay on 1^st floor and C lives on 6^th floor.

Floor	Person	Age
8	H
7
6	C
5		17
4
3
2
1	D	33

Only one person is elder to K. So K is 34 years old and B is elder to K so B is 40 years old it means they both are staying on an even numbered floor. As we know B cannot stay on 2^nd floor. So B must stay on 4^th floor. One person stays between B and K. K lives above B. So this case gets rejected because C lives on 6^th floor.

Floor	Person	Age
8	H
7
6	C
5		17
4	B	40
3
2
1	D	33

Case 3: if the one who is 17 years old stays on 1^st floor-

Then H lives on 4^th floor and we know that the number of person is staying above D is same as below H. Three persons are staying below H so D must stay on 5^th floor and C lives on 2^nd floor.

Floor	Person	Age
8
7
6
5	D	33
4	H
3
2	C
1		17

Only one person is elder to K. So K is 34 years old and B is elder to K so B is 40 years old it means they both are staying on an even numbered floor. As we know B cannot stay on 2^nd floor. One person stays between B and K. K lives above B. So B must stay on 6^th floor and K lives on 8^th floor.

As A is 29 years old so A must stay on an odd numbered floor. So A is either lives on 7^th or 3^rd floor but B lives on 6^th floor so A cannot live on 7^th floor because their names are consecutive alphabets then A lives on 3^rd floor. J cannot stay adjacent to K so J lives on 1^st floor and I lives on 7^th floor. I lives on odd numbered floor then I is 25 years old. H is younger to C. So H is 22 years old and C is 28 years old.

Here is the final table: