In a class there are 35 boys, whose average weight is 54 kg, and 42 girls, whose average weight is 40 kg. Find the average weight of the entire class.​

In a class, there are 30 boys and 20 girls. The average weight of 30 boys is 60 kg and average weight of 20 girls is 35 kg. Find the average weight of the class.

There are 50 students in a class, of which 40 are boys. The average weight of the class is 44 kg and that of the grils is 40 kg. find the average weight of the boys.

In a class, there are 20 girls and 30 boys . The mean weight of 20 girls is 35 kg and mean weight of 30 boys is 60 kg. Find the mean weight of the class

The average weight of 55 students is 55 kg , and the average weight of another 45 students is 45 kg . Find the average weight of all the students .

In a class there are 50 students.Their average weight is 45 kg.When a student leaves the class,the average is reduced by 100 g.Find the weight of the student who left the class.

In a class of 25 boys and 20 girls, the mean weight of the boys is 40 kg and the mean weight of the girls is 35 kg. Find the mean weight of the class. The following are the steps involved in solving the above problem. Arrange them in sequential order. (A) The total weight of 25 boys = 25 xx 40 = 1000 kg The total weight of 20 girls =20 xx 35 = 700 kg (B) The mean weight of the class = (1700)/(45) = 37(7)/(9) kg (C) The total weight of 45 students = 1000 kg + 700 kg = 1700 kg

In a class there are 35 girls and 20 boys and the total average weight of class is 38 Kg. Total average weight of boys is 52 kg. Find the approximate average weight of girls ?

The average weight of 45 students in a class is 52 kg. 5 of them whose average weight is 48 kg leave the class and other 5 students whose average weight is 54 kg join the class. What is the new average weight (in kg) of the class?