Marthaxoxo Marthaxoxo

19-10-2017
Mathematics

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A maths test has two prolems. the first was solved by 70% of the students. The second was solved by 60%. Every student solved at least one of the problems. How many students took the test?

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basketballplayi basketballplayi

19-10-2017

If I understood correctly, I'd say 30 kids

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