In a row of girls, Rita and Monika occupy the ninth places from the right end and tenth place from the left end, respectively. If they interchange their places, Rita and Monika occupy seventeenth places from the right and eighteenth place from the left, respectively. How many girls are there in the row ?

B. 26

Three persons A, B and C are standing in queue. There are five persons between A and B and eight persons between B and C. If there ne three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue ?

C. 28

In a row of trees, one tree is fifth from either end of the row. How many trees are there in the row ?

B. 9

Sanjeev ranks seventh from the top and twenty eight from the bottom in a class. How many students are there in the class ?

D. 34

Manoj and Sachin are ranked seventh and eleventh respectively from the top in a class of 31 students. What will be their respective ranks from the bottom in the class ?

C. 25TH AND 21ST