Seating Arrangement | Logical Reasoning Questions and Answers | Logical Reasoning Free Online-Tests | LucentBlackBoard

Direction to solve :
Directions for questions : Select the correct choice from the given choices.

01.

A grocer, a doctor, a lawyer, a tailor and a barber are the five persons who are seated in a row. The grocer does not wish to sit immediately next to the barber. The barber and the tailor sit immediately next to each other. The lawyer is at the right extreme end of the row. The grocer is immediately to the left of the lawyer. Who must be exactly in the middle seat of the row?

A.	tailor	B.	grocer
C.	barber	D.	doctor

Answer and Explanation

Answer: doctor

Explanation:
Let us analyse all the conditions. The lawyer is at the extreme right end of the row.
, , , , lawyer.
1 2 3 4 5
Grocer is to the immediate left of the lawyer
, , , grocer, lawyer.
1 2 3 4 5
The grocer is not next to the barber. So barber cannot be in seat 3.
The barber and the tailor are next to each other.
So the order of seating can be,
barber, tailor, doctor, grocer, lawyer
or
tailor, barber, doctor, grocer, lawyer
or
doctor, barber, tailor, grocer, lawyer.
The blank is occupied by the doctor. So the doctor or tailor can be in the middle of the row.

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02.

Five people Pradeep. Qutub, Raj, Sandy and Tej are in a row. Raj sits to the immediate right of Tej. If Pradeep and Qutub have only two persons sitting between them, which of the following must be True?

A.	Pradeep is at one extreme end of the row.	B.	Qutub is sitting beside Pradeep.
C.	Tej or Raj must be at one extreme end of the row.	D.	Sandy must be at one of the ends of the row.

Answer and Explanation

Answer: Sandy must be at one of the ends of the row.

Explanation:
Let us consider the given data. R is to the immediate right of T, i.e. T -> R (TR), whereas P and Q have exactly two persons sitting in between them that can be in four possible ways as shown below.

(i) P--Q- (ii) -P â€” Q

(iii)Qâ€” P- (iv) -Q--P

T and R must be between P and Q as they are next to each other. In any case, S must be at one extreme end either at the left extreme or at the right extreme.

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03.

Four boxes P, Q, R and S, three files A, B and C are kept on a table one after the other in a row from left to right. File C has as many items to its left as to its right. No box is at any extreme end of the row. Box P is kept to the immediate right of file A, while file C is kept to the immediate left of box R.
What is kept third from the right end of the row on -the table?

A.	C	B.	S
C.	R	D.	A

Answer and Explanation

Answer: R

Explanation:
File C has as many items to its left as to its right. So it must be in the centre of the row. C is to the immediate left of box R
So R must be at space 5.
1 2 3 4 5 6 7
C R
The extreme ends must be occupied by only A and B, as no box is at the extreme ends. Box P is to the immediate right of file A. In any case, the third from the right end of the row is R.

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04.

Eight persons Ankit, Bobby, Chetan, Dheru, Parvez, Qadir, Rinku and Sahil sit in two parallel rows with four seats in each row facing each other. Ankit and Bobby are not in the same row. Parvez sits to the immediate left of Chetan in the same row but opposite to Qadir. Rinku and Bobby have only two persons between them. Ankit and Parvez have only one person between them. Which of these pairs of persons can sit diagonally opposite each other?

A.	Sahil and Dheru or Qadir and Rinku.	B.	Parvez and Ankit or Ankit and Chetan.
C.	Ankit and Bobby or Rinku and Chetan.	D.	Either (1) or (2)

Answer and Explanation

Answer: Ankit and Bobby or Rinku and Chetan.

Explanation:
Parvez sits to the immediate left of Chetan in the same row and opposite to Qadir. Ankit and Parvez have only one person between them. So, the arrangement in that
row can be
Parvez, Chetan Ankit - or
Ankit - Parvez, Chetan.
Rinku and Bobby have two persons between them. So in their row, it may be Rinku â€” Bobby or
Bobby - - Rinku
As Parvez sits opposite to Qadir, the two rows must have people as follows.
Rinku / Bobby - Qadir Rinku/Bobby
Ankit - Parvez Chetan
So, Ankit and Bobby may be diagonally opposite, just as Chetan and Rinku can be.

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05.

Five books on five different subjects Physics, Chemistry, Mathematics, Anatomy and Botany are arranged on a shelf. The book on Mathematics is not on top or at the bottom. Chemistry book and Botany book have exactly two books between them, same as Mathematics and Physics books. Which of the following books has to be in the middle of the shelf?

A.	Mathematics	B.	Physics
C.	Anatomy	D.	Cannot be determined

Answer and Explanation

Answer: Anatomy

Explanation:
Books on Chemistry and Botany have exactly two books between them just as books on Maths and Physics have. Mathematics book is neither at the top nor at the bottom. So, the arrangement of Chemistry and Botany books may be as follows.
Chemistry - - Botany - (or) - Chemistry - - Botany or (ii) Botany - - Chemistry - (or) - Botany - - Chemistry

Maths books are not at any extreme. So, the arrangement may be as follows: Chemistry Mathematics - Botany Physics or Physics Chemistry - Mathematics Botany or Botany Mathematics - Chemistry Physics or Physics Botany -Mathematics Chemistry.
In any of these possible arrangements, only the Anatomy book can be in the exact middle.

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