The ratio of the least number of students who joined the school to the maximum number of students who left the school in any of the years during the given period is?

In which periodical exams did the student obtain the highest percentage increase in marks over the previous periodical exams ?

The total number of marks obtained in Feb. 02 is what percent of the total marks obtained in April 01 ?

What is the percentage of marks obtained by the student in the periodical exams of August, 01 and Oct, 01 taken together ?

What are the average marks obtained by the student in all the periodical exams during the last session ?

In which periodical exams there is a fall in percentage of marks as compared to the previous periodical exams ?

The number of students studying in the school during 1999 was?

For which year, the percentage rise/fall in the number of students who left the school compared to the previous year is maximum?

The strength of school incresed/decreased from 1997 to 1998 by approximately what percent?

The number of students studying in the school in 1998 was what percent of the number of students studying in the school in 2001?