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Mathematics

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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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Answer :

ChoiSungHyungo ChoiSungHyungo

Step-by-step explanation:

100% - 40% - 20% = 40%.

40% of students are eighth graders.

Hence there are (40/100) * 70 = 28 eighth graders.

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