1. In a row of 45 students, Ava is 11th from the left end. What is her position from the right end if Noah, who is 9th from the right end, is 7 places to the right of Ava?

2. In a meeting, 5 people are seated around a circular table. A is seated between B and C. D is to the right of B and left of E. Who is seated to the right of E?

3. Eight friends A, B, C, D, E, F, G, and H are sitting in a straight line facing north. C is sitting between G and E. A is third from the right end and F is second to the left of A. B is sitting to the immediate right of H. Who is sitting at the left end?

4. In a row of 50 students, Ethan is 13th from the right end. What is his position from the left end if Sophia, who is 11th from the left end, is 8 places to the left of Ethan?

5. In a line of people, John is 10th from the front and 25th from the back. How many people are in the line?

6. Six friends P, Q, R, S, T, and U are sitting in a row facing north. S is between U and R. P is second to the right of U. T is second to the left of Q. Who is sitting at the right end?

7. In a line of people, Alex is 15th from the front and 18th from the back. How many people are in the line?

8. In a row of children, Ravi is 7th from the left and 12th from the right. Sita is 13th from the left and 6th from the right. How many children are there between Ravi and Sita?

9. Six friends A, B, C, D, E, and F are sitting around a circular table facing the center. B is between F and C. A is second to the right of B and E is second to the left of B. Who is sitting opposite to A?

10. In a row of 45 students, when Sita was shifted to her left by 6 places her number from right end of the row became 22nd. What was her earlier position from the left end of the row?