In a high school the number of girls makes up 20% of all the students. How many girls are there if there are 800 boys in the school ?
Follow Math Help Forum on Facebook and Google+
20% girls implies 80% boys therefore Making x the total number of students $\displaystyle 80\% \times x = 800$ $\displaystyle 0.8 \times x = 800$ Gives x = 1000, how many are girls?
View Tag Cloud