Let's assume there are 100 pupils in the class for simplicity.
Since 1/4 of the pupils are girls, there are 100 * 1/4 = 25 girls in the class.
And since 2/5 of the girls are boarders, there are 25 * 2/5 = 10 girl boarders in the class.
Since none of the boys are boarders, the number of boy boarders is 0.
Therefore, the total number of boarders in the class is 10 + 0 = <<10+0=10>>10.
The fraction of the class that are boarders is 10/100 = 1/10. Answer: \boxed{\frac{1}{10}}.
In a class ¼ of the pupils are girls, ⅖ of the girls are boarders and none of the boys are boarder, what fraction of the class are boarders?
1 answer