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16/08/2017 at 08:10
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At one school, the ratio of students who have one or more younger siblings to those who have no younger siblings is 6 to 5. If 180 students do not have a younger sibling, how many students at this school have one or more younger siblings? 



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    Nguyễn Thế Hiển 16/08/2017 at 09:03

    If 180 students don't have a younger sibling the number of students who have younger siblings is :

    180 : 5 x 6 = 216 ( students ) 

    Ans : 216 students

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