下面是培臻教育小编为大家整理的一篇关于BMAT考试练习题13的文章，供大家参考，下面是详细内容。
BMAT考试练习题：
Maisy attends a small rural school with 15 othergirls and 10 boys. Of the girls in the school, three older ones have youngersisters in the school, and two other girls have brothers in the school. Of theboys in the school, two older ones have younger brothers in the school, and twoother boys have sisters in the school.
If there are no twins, and no family has more thantwo children in the school, how many of the children do not have either abrother or a sister in the school?
A 7
B 8
C 11
D 12
E 14
F 16
G 17
H 19
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