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Ten people are sitting in two parallel rows containing 5 people each in such a way that there is equal distance between adjacent persons.

In row 1 – A, B, C, D and E are seated and all of them are facing south.

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

Thus each person faces another person from the other row.

C sits at an extreme end of the row. Only two people sit between B and C. The person facing B sits to the immediate left of Q. Only one person sits between Q and P. A faces P. A sits to the immediate left of the person facing S. E sits second to the right of the person facing T.

Who faces B?

Solution

✅ Correct Option: 2

We have two parallel rows of 5 people each. Row 1: A, B, C, D, E — all facing South. Row 2: P, Q, R, S, T — all facing North.

Each person faces exactly one person in the opposite row.

Important: Left and right are determined according to the direction the person is facing. Therefore, for a person facing South, their left is towards the right side of the page.

Now, C sits at an extreme end of the row. Also, exactly two people sit between B and C.

There are two possibilities:

  • C at Position 1 → B at Position 4
  • C at Position 5 → B at Position 2

We will test these possibilities. If C at Position 1: The arrangement would begin as: C _ _ B _

The person facing B is at Position 4 in Row 2. This person sits immediately to the left of Q.

Since Row 2 faces North, their left is towards the left side of the page. Therefore: Q = Position 5

Only one person sits between Q and P: P = Position 3

Since A faces P: A = Position 3

Now A faces South. A sits immediately to the left of the person facing S. Since A faces South, A's left is towards the right side of the page.

This forces the person facing S to be at Position 4. But Position 4 in Row 1 is already occupied by B, creating a contradiction with the remaining clues.

Hence: C cannot be at Position 1.

Therefore C is at Position 5: so: _ B _ _ C

Since there are two people between B and C: B = Position 4, and C = Position 5.

The person facing B is at Position 2 in Row 2. This person sits immediately to the left of Q.

Since Row 2 faces North, left is towards the left side of the page. Therefore: Q = Position 3

Only one person sits between Q and P: P = Position 1, Since A faces P: A = Position 1

Now, We are given: A sits immediately to the left of the person facing S.

A is at Position 1 and faces South. For a South-facing person, left is towards the right side of the page. Therefore, the person facing S must be at Position 2.

Since E is the person at Position 2: E = Position 2, and S = Position 2

Thus:

Row 1: _ E A _ C

Row 2: _ S P _ Q

The remaining positions in Row 2 are Positions 4 and 5.

We use the clue: E sits second to the right of the person facing T.

If T is at Position 4, then the person facing T is at Position 4 in Row 1. That person is B. B faces South, so B's right is towards the left side of the page.

Two positions to B's right is Position 2, occupied by E. Therefore: T = Position 4

The remaining position is occupied by R: R = Position 5

Final Arrangement

Row 1: C – E – A – B – D

Row 2: R – S – P – T – Q

So, T faces B.

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