[SPAM] Re: [obm-l] Pintores

[jjunior@xxxxxxxxxxxxxxxxx]

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Em 1 metro, r = l - 1. r é o tempo do rápido; l, o do lento.
Em 27 metros, 27r + 27l = 60.
Logo, 27(l-1) + 27l = 60 -> 54l = 60 + 27 ->
l = 87/54 = 1min 36,67seg. r = 36,67 seg.


> Não consegui montar algebricamente o seguinte problema. Ficarei grato
> se me ajudarem!
>
> Duas pessoas, A e B, pintam separadamente 1m^2 de um muro em tempos
> que diferem de 1 minuto. Trabalhando juntas, elas pintam 27m^2 por
> hora. Quanto tempo cada uma leva pra pintar 1 m^2 ?
>
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