Answer to Question #4307 in Combinatorics | Number Theory for faye

Question

a school has 1200 pupils.575 of these pupils are girls .
2, 5ths of the girls like sport , 3, 5ths of the boys like sport ,whats the total number of pupils in the school who like sport??

Answer 1

We must calculate the total number of boys who like sport and the total number
of girls who like sport. So:
(1200-575) * 3 / 5 + 575 * 2 / 5 = 605.