Multiples of 12 between 424 to 530 are 36*12 to 44*12 - total 9 numbers average = 40*12=480
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 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 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.
The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.
