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DI question.
by TG3872 Delhi - Friday, 20 November 2015, 05:59 PM
  Answer the questions on the basis of the information given below.

The following Table gives the number of students across six different classes of Pune Modern School in the years 2010 and 2011.

It is also known that:
i. New students join the school only in class V.
ii. No student leaves the school before passing out class X.
iii. The students who fail in a class in a year will study in the same class next year.

Questions:
What was the maximum possible number of students who joined the school in 2011?
In 2010, which of the following was not a possible pass percentage of class VI?
In 2010, if the number of students who passed in class VI was more than the number of students who failed in class IX, then what was the minimum pass percentage of class VIII?


If anyone could please help and give a detailed explanation for the above problem.