In an assessment the first 17 people scored an average of three points each. After a further 30 people had taken the assessment the average score rose to nine points each. What was the average number of points scored by the last 30 people only?
The average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60. What is the average marks of all the students?
The average of first set of 6 numbers is 12, second set of 8 numbers is 14 and third set of 14 numbers is 10. Calculate the average of all the numbers.
The average weight of 31 students of section A of a class is 53 kg, whereas the average weight of 27 students of section B of the same class is 55 kg. Find out average weight of all the 58 students of the class.
