there are 600 children on a field. 30% of them were boys. after 5 teams of boys join the children on the field, the percentage of children who were boys increaseto 40%. how many boys were there in the 5 teams altogether?

Answer 1

so we had .3(600) boys or 180 boys
let the number of boys that joined be x

so .4(600+x) = 180+x

solve for x

Answer 2

30% of 600 = 180

180+5n = .40(600+5n)
Now just find n and thus 5n.

Answer 3

I DON'T KNOWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

Answer 4

The answer is 180 duh