What is the difference between the number of students who are not qualified in the exam from E in 2016 and the number of students who are not qualified in the exam from C in 2018?

What is the approximate percentage of the students qualified over appeared from all the institutes together in 2015?

What is the approximate average number of students who are not qualified from B in all the years together?

What is the difference between the total number of students who are not qualified in 2018 from all the colleges together and total number of students who are not qualified in 2017 from all the colleges together?

What is the sum of the average number of students who appeared from all the colleges in 2016 and average number of students who qualified from all the students in 2015?

A boat can travel upstream and covers a distance of 120 km in 10 hours. If the speed of the stream is 4 kmph, then what is the time taken by the boat to travelthe same distance in the downstream?

 Ram expected 50% profit when he sells the shirts at the marked price. But during the delivery to wholesaler 20% of the shirts are completely damaged and it could not be sold. 25% of the shirts are slightly damaged and it sold at 80% of the cost price. The remaining shirts are sold at the marked price. What is the profit percentage of the whole transaction?

A and B started the business with investment of Rs.2500 and Rs.1500 respectively. After 4 months C joined with Rs.2000 and B added Rs.1000 to his initial investment. At the end of 8 months, B left the business and after one year A received the profit share which is Rs.3000. What is the total profit?

The ratio of the side of the square to the breadth of the rectangle is 6:7 and the perimeter of the rectangle is equal to the perimeter of the circle. The area of the square and the length of the rectangle is 576 cm and 38 cm respectively. What is the area of the circle?

A milkman contains the mixture of milk and water in the ratio of 5:3. If he added 22 liters of milk and 15 liters of water in the mixture, then the ratio becomes 8:5. Find the initial quantity of the milk.