Question

Eight people are sitting in two parallel rows containing 4 people each in such a way that there is equal distance between adjacent persons.

In row 1 - L, M, N and O are seated and all of them are facing south.

In row 2 - P, Q, R and S are seated and all of them are facing north.

Thus, each person faces another person from the other row. Only one person sits between N and M. Only one person sits between Q and P. The one facing P sits at the second position from the left of the line. N sits to the immediate left of 0 and faces S. O does not face P.

which of the following represents both people facing each other ?

• A. L and S
• B. L and P
• C. M and S
• D. N and R

Answer 1

Answer:

B. L and P

Step 1: Basic Structure

Two rows, 4 people each.

Row 1 (facing South): L, M, N, O
Row 2 (facing North): P, Q, R, S

Number positions 1–4 from left to right (our view).

Since Row 1 faces South:

• Their left = our right

• Their right = our left

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Step 2: “Only one person sits between N and M”

So N and M are two seats apart:
Possible: (1,3) or (2,4)

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Step 3: “N sits to the immediate left of O”

Since Row 1 faces South,
N’s left = our right.

So O must be immediately to the right (our view) of N.

Thus the pair must look like:

N O (left → right from our view)

Now check possible placements:

If N at 1 → O at 2
If N at 2 → O at 3
If N at 3 → O at 4

But N and M must have one person between them.

If N at 1 → M at 3
If N at 2 → M at 4

Try placing:

Let’s take
N at 2 → O at 3

Then M must be at 4 (one between 2 and 4).

Row 1 becomes:

1 → L
2 → N
3 → O
4 → M

But N must face S (given). We’ll check later.

However check “one between N and M”:
N(2), M(4) → yes.

Good so far.

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Step 4: “N faces S”

So Row 2 position 2 = S.

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Step 5: “Only one person sits between Q and P”

Possible positions:
(1,3) or (2,4)

Since position 2 already S,
Q & P must be at (1,3).

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Step 6: “The one facing P sits second from left”

Row 1 position 2 is N.

So whoever sits at position 2 faces position 2 in Row 2.

Thus P cannot be at 2 (already S).

“The one facing P sits second from left.”

Row 1 position 2 = N

So P must be at position 2.

But position 2 already S

So our earlier placement wrong.

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Try correct placement

Let’s instead place:

N at 3 → O at 4
Then M must be at 1 (one between 1 & 3).

Row 1:

1 → M
2 → L
3 → N
4 → O

Check:
One between N(3) & M(1) → yes (L at 2).

Good.

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N faces S

So Row 2 position 3 = S.

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“Only one person between Q and P”

Possible:
(1,3) or (2,4)

Since 3 is S,
P & Q must be (2,4).

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“The one facing P sits second from left”

Row 1 position 2 = L

So L faces P.

Therefore P must be at position 2.

Then Q at position 4.

Row 2 so far:

1 → ?
2 → P
3 → S
4 → Q

Remaining seat (position 1) = R.

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Check all conditions

Row 1:
1 M
2 L
3 N
4 O

Row 2:
1 R
2 P
3 S
4 Q

Check:

✔ One between N & M (M–L–N)
✔ One between Q & P (P–S–Q)
✔ N immediate left of O
(Row 1 facing South → left = our right
N at 3, O at 4 → correct ✔)
✔ N faces S (position 3)
✔ The one facing P sits 2nd from left
L at position 2 faces P ✔
✔ O does not face P
O faces Q ✔

Everything satisfied

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Final Facing Pairs:

M ↔ R
L ↔ P
N ↔ S
O ↔ Q

Correct Answer:

L and P