What was the percent increase in the number of students in University-1 in the year 2011 as compared to the previous year? 

If 25% of the students in univeristy-2 in the year 2010 were females, what was the number of male students in University-2 in the same year? 

What is the sum of the number of students in University-1 in the year 2007 and the number of students in University-2 in the year 2011 together?

What was the difference between the number of students in University-1 in the year 2010 and the number of students in University-2 in the year 2012?

What is the ratio of the cost of 1kg of apples from Ropar to the cost of 1kg. of grapes from Chandigarh?

Ravinder had to purchase 45 kg of grapes from Hoshiarpur. The Shopkeeper gave him a discount of 4% per kg. What amount did he pay to the Shopkeeper after the discount?