Seven people, L, V, H, D, E, F and T, are sitting in a row, facing north. Only four people sit to the right of D. V sits fourth from the left end. E is the immediate neighbour of H and T. F sits third to the left of T. How many people sit between L and H?
Five
Assign positions 1 to 7 from left to right.
Only four people to the right of D → D is at position 3.
V sits fourth from the left end → V is at position 4.
F sits third to the left of T → pos(T) − pos(F) = 3. From the remaining positions {1, 2, 5, 6, 7} for L, H, E, F, T: the only valid pair is F = 2, T = 5.
E is the immediate neighbour of both H and T. T is at position 5, so E must be at position 4 or 6. Position 4 is occupied by V, so E = 6.
E (position 6) must also be immediately adjacent to H → H = 5 or H = 7. Position 5 is T, so H = 7.
The remaining person L fills position 1.
Final row (left to right): L(1), F(2), D(3), V(4), T(5), E(6), H(7).
People sitting between L (position 1) and H (position 7): F, D, V, T, E = 5 people.
Hence, five people sit between L and H.
Seven people, A, B, C, D, E, F and G, are sitting in a straight row facing the north. Only two people sit to the left of C. Only two people sit between A and B. B sits to the left of A. E is an immediate neighbour of A to the right. Only one person sits to the right of D. F is not an immediate neighbour of B. Who sits at the centre?
P, Q, R and S are sitting on a bench and facing in the same direction. P sits next to Q but not next to R. S, who is sitting on the extreme right, does not sit next to either Q or R. How many of them each have two neighbors?
Five friends Ram, Priya, Raunak, Aditya and Shyam are sitting in a row facing north. Raunak is to the right of Shyam and Priya is to the left of Shyam but to the right of Rama. Raunak is to the left of Aditya. Who is fourth from the left end?
Six people P, Q, R, S, T and U sit in a row, not necessarily in the same order. If two persons sit in between P and Q, and two persons sit in between T and U, then how many persons sit in between R and S?
Six persons P, Q, R, S, T and U are sitting in a row facing north (not necessarily in the same order). Q sits fourth to the right of S. One person sits between P and Q. Three persons sit between R and T. R sits immediate left of P. How many persons sit between T and U?