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Como resolver essa questão de regra de três simples?
Para pintar um prédio, 7 homens trabalharam por 6 dia.
A partir de então, para que o serviço de pintura terminasse
mais rapidamente, foram contratados mais 7 homens com
a mesma força de trabalho daqueles que já estavam trabalhando. No total, foram necessários 19 dias para completar o
serviço de pintura. Se todos os 14 homens estivessem trabalhando juntos desde o primeiro dia de serviço, a pintura do
prédio ficaria pronta em
![](http://www.professoronline.net/wp-content/uploads/2012/02/professores_online.jpg)
Answer #
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Answer #1
multiplica 6 vezez 2