Mathematics, 25.01.2021 02:10 Asterisk

There are 70 students in the school band. 40% of them are sixth-graders, 20% are seventh graders, and the rest are eighth-graders. How many students are eighth-graders?

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There are 70 students in the school band. 40% of them are sixth-graders, 20% are seventh graders, an...

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