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Mathematics 9 Online
OpenStudy (anonymous):

Eight thousand and twenty people attended concert on sunday. Six thousand four hundred and sixteen people are adults, the rest of them are children. What is the percentage of the children?

OpenStudy (anonymous):

100 - (6416/8020)*100 = 20

OpenStudy (callisto):

(8020-6416)/8020*100% = 20%

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