Seven friends C, D, E, P,Q, R and S are sitting around a round table facing the centre of the table. Only R is seated between D and S. S is seated third to the left of P. C is seated immediate left of P. E is not the immediate neighbour of S. How many persons are seated between Q and E when counted from the right of E?

All are facing the centre, so:

• Left = clockwise
• Right = anticlockwise

Let’s place P anywhere.

Assume P at position 1.

Since S is third to the left of P, S will be at position 4.

Now C is immediate left of P, so C sits at position 2.

Arrangement so far:

1 → P
2 → C
4 → S

Condition: Only R is seated between D and S

So possible arrangement around S:

D – R – S (with exactly one person between D and S)

Thus place:

5 → R
6 → D

Remaining persons: E and Q occupy positions 3 and 7.

Condition: E is not the immediate neighbour of S

S is at position 4. Its neighbours are positions 3 and 5.

Position 5 already has R.
So E cannot sit at position 3.

Therefore:

7 → E
3 → Q

Final arrangement:

1 → P
2 → C
3 → Q
4 → S
5 → R
6 → D
7 → E

Now count from the right of E (anticlockwise):

E → D → R → S → Q

Between E and Q = D, R, S

Total = 3 persons

Correct Answer: Three / तीन