Question
The average mass of a group of 10 children is 30 kg and the average mass of another group of 18 children is 37 kg. What is the average mass of the two groups of children?
3 m

Click button first when a symbol is required. X

The average mass of a group of 10 children is 30 kg and the average mass of another group of 18 children is 37 kg. What is the average mass of the two groups of children?