PE 1 - Arrangements | Arrangements, Ranking & Ordering
Answer the following questions based on the information given below.
9 people - P to X - are seated in a row, facing the north. V is between Q and R and R is closer to T. U and X sit on the corner seats. T sits at the center. S sits three places to the right of T. W is equidistant from both X and T. P is two places to the left of S and next to W.
Who is the sixth person from the right end?
- A.
Q
- B.
R
- C.
P
- D.
S
Answer: Option B
Explanation :
All of them are facing north. The arrangement would be like this.
_1_ _2_ _3_ _4_ _5_ _6_ _7_ _8_ _9_ ↑
T sits at the center. S sits three places to the right of T
_1_ _2_ _3_ _4_ _T_ _6_ _7_ _S_ _9_ ↑
P is two places to the left of S and next to W
_1_ _2_ _3_ _4_ _T_ _P_ _W_ _S_ _9_ ↑
W is equidistant from both X and T
_1_ _2_ _3_ _4_ _T_ _P_ _W_ _S_ _X_ ↑
U and X sit on the corner seats
_U_ _2_ _3_ _4_ _T_ _P_ _W_ _S_ _X_ ↑
V is between Q and R and R is closer to T
_U_ _Q_ _V_ _R_ _T_ _P_ _W_ _S_ _X_ ↑
Hence, option (b).
Workspace:
How many people are sitting between Q and W?
- A.
2
- B.
4
- C.
3
- D.
1
Answer: Option B
Explanation :
Consider the solution to the first question.
There are four people (VRTP) between Q and W.
Hence, option (b).
Workspace:
Who are the immediate neighbours of P?
- A.
W and X
- B.
Q and R
- C.
R and P
- D.
W and T
Answer: Option C
Explanation :
Consider the solution to the first question.
W and T are the immediate neighbours of P.
Hence, option (c).
Workspace:
Which of the following pairs is not sitting next to each other?
- A.
W and P
- B.
Q and U
- C.
R and P
- D.
R and T
Answer: Option C
Explanation :
Consider the solution to the first question.
R and P do not sit next to each other.
Hence, option (c).
Workspace:
The positions of Q and W are interchanged, and so are the positions of R and S. How many people are now sitting between S and Q?
- A.
0
- B.
1
- C.
2
- D.
3
Answer: Option C
Explanation :
Consider the solution to the first question.
The new arrangement will be
_U_ _W_ _V_ _S_ _T_ _P_ _Q_ _R_ _X_ ↑
2 people (T and P) are sitting between S and Q.
Hence, option (c).
Workspace:
Answer the following questions based on the information given below.
P, Q, R, S, T, U and V are sitting on a bench, facing the west. S is third from the north end. V is between T and U. Q is at an extreme and T is his neighbour. R is to the immediate right of S.
Who is fourth from the south?
- A.
R
- B.
T
- C.
S
- D.
U
Answer: Option D
Explanation :
If people face the west, they can be numbered 1-7 (from north to south), as shown:
7
6
5
4
3
2
1
This is equivalent to a floor arrangement of seven people on seven floors.
S is third from the north. and R is to the immediate right of S i.e. S = 5 and R = 6.
7
R
S
4
3
2
1
Q is at an extreme and T is his neighbour. Since QT have to be together, Q = 1 and T = 2
V is between T and U. Since T = 2, V = 3, U = 4.
Hence, P takes the only remaining places i.e. 7. Thus, the final arrangement is:
(North)
P
R
S
(West) U (East)
V
T
Q
(South)
Thus, U is fourth from south.
Hence, option (d).
Workspace:
Between which of the following pair of people is S sitting?
- A.
P and R
- B.
R and U
- C.
V and Q
- D.
R and V
Answer: Option B
Explanation :
Consider the solution to the first question.
S is sitting between R and U.
Hence, option (b).
Workspace:
With whom should R interchange places to be third from the south?
- A.
V
- B.
T
- C.
S
- D.
U
Answer: Option A
Explanation :
Consider the solution to the first question.
Since V is originally third from the south, R should interchange places with V.
Hence, option (a).
Workspace:
Which of the following pair of people is sitting at the extreme ends?
- A.
RU
- B.
PV
- C.
QU
- D.
PQ
Answer: Option D
Explanation :
Consider the solution to the first question.
P and Q sit at the extreme ends.
Hence, option (d).
Workspace:
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