If there are 54 people in a class and the ratio of girls to total people is 2:5, how many girls and boys are there in the class?

Answer 1

54 is not a common multiple of 2 and 5.

Check the data!

Answer 2

2/7 of the class are girls; so 2/7*54=108/7=15.4285girts

39 boys

Answer 3

So then 2/5 of them are girls..

(2/5)(54) = 108/5 = 21.6 are girls

54 - 21.6 = 32.4 of them are boys

so the percent of girls is 21.6 / 54 = 216/540 = 108/270 = 54/135 = 18/45 = 2/5 = 0.4 = 40%

and the boys are 32.4/54 = 324/540 = 162/270 = 81/135 = 27/45 = 3/5 = 0.6 = 60%

so yes there are 21.6 girls and 32.4 boys...

already then.,..