In a different city grade class the radio of boys to girls is 3:2 how many boys in how many girls their B in this class is there more than one possible answer explain

For a fixed total number of boys and girls, there is only one possible answer. The boys to girls ratio is 3:2, which means 3/5 are boys and 2/5 are girls. If the total number of boys and girls is N, then

number of boys = (3/5) N

number of girls = (2/5) N

Obviously, N must be a multiple of 5, since we cannot have "fractional" boys or girls.