Question

Seven people A, B, C, D, E, F and G are sitting around a circular table, facing the centre (but not necessarily in the same order). A is sitting second to the right of E. Only one person is sitting between D and A. B is sitting third to the right of G. F is an immediate neighbour of B. How many people are sitting between D and E when counted from the left of E?

• A. two
• B. one
• C. four
• D. three

Answer 1

Answer:

A. two

Let us solve it step by step.

Fix positions

Assume all are facing the centre, so:

• Right = clockwise

• Left = anticlockwise

Place E anywhere (reference point).

• A is second to the right of E ⟹ A is 2 seats clockwise from E.

• Only one person between D and A ⟹ D is 2 seats away from A.

  • The only possible position (without conflict) places D correctly.

After fixing these, the remaining seats are arranged using:

• B is third to the right of G

• F is an immediate neighbour of B

A valid circular arrangement is obtained.

Count between D and E from the left of E

• Count anticlockwise (left) from E to D.

• You encounter 2 people in between.