Total number of graduates who appeared for ES in 2008 is what percent of the total number of graduates who appeared for CS in the same year

What is the respective ratio between the number of graduates who had appeared for ES in 2010 and the number of graduates who appeared for CS in 2010

Total number of candidates who appeared for CS and ES together in 2011 was 25% more than the total number of candidates who appeared for the same together in 2010. How many female candidates appeared for both the exams together in 2011, if they formed 2/5th of the total number of candidates appearing for both CS and ES that year

Abhay gave 30% of his money to Vijay, Vijay gave 2/3rd of what he received to his mother. Vijay's mother gave 5/8th of the money she received from Vijay to the grocer. Vijay's mother is now left with INR 600/-. How much money did Abhay have initially

A rectangular plot 55 m long and 45 m broad, has two concrete crossroads (of equal width) running in the middle of it. One parallel to the length and the other parallel to the breadth. The rest of the plot is used as lawn. If the area of the lawn is 1911 m², what is the width of each of the crossroads? (in m)

A bag contains 4 red balls, 6 green balls and 5 blue balls. If three balls are picked at random, what is the probability that two of them are green and one of them is blue in colour