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In a school 50% of the students are younger than 10, 1/20 are 10 years old and 1/10 are older than 10 but younger than 12, the remaining 70 students are 12 years or older. how many students are 10 years old?

Answers (1)

Students who are 10 years old have a fraction of 1 / 20 of the total x, 

So, (1 / 20) of 200 = 10 students

Posted by

shubham.krishnan

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