Question

In a row of students, Ritwik and Monali occupy the 10${}^{th}$ place from the right end and 11${}^{th}$ place from the left end respectively. If they interchange their places, then Ritwik and Monali occupy 18${}^{th}$ place from the right and 19${}^{th}$ place from the left respectively. How many students are there in the row?

• A. 28
• B. 29
• C. 27
• D. 25
• E. None of these

Answer 1

The correct option is A

28

Since Ritwik and Monali exchange places, so Ritwik's new position is the same as Monali's earlier position. This position is 17${}^{th}$ from the right and 10${}^{th}$ from the left .

Number of students in the row = (10 + 1 + 17) = 28