In a class of boys and girls the mean weight of 8 boys is 55kg and the mean weight of a group of girls os 48kg the mean weight of all the children is 50.8kg how many girls are there

Answer 1

In a class of boys and girls the mean weight of 8 boys is 55kg and the mean weight of a group of girls os 48kg the mean weight of all the children is 50.8kg how many girls are there

Answer 2

Just add up all the weights
if there are g girls, then you know that
55*8 + 48g = 50.8(8+g)
Now just solve for g

Answer 3

Fjcn

Answer 4

I'm sorry, I don't understand "Fjcn". Can you please provide more context or information?