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two person's clean the kitchen in 6 days

how long need 3 person's to clean?

 28.05.2020
bearbeitet von Gast  28.05.2020
bearbeitet von Gast  28.05.2020
 #1
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3 person´s clean the  kitchen in 5 days

 28.05.2020
 #3
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3 Persons needing 4 days to clean the kitchen

Gast 28.05.2020
 #2
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Thank's a lot

 28.05.2020
 #4
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two person's clean the kitchen in 6 days

how long need 3 person's to clean?

 

Hello Guest, hallo Gast!

 

\(Arbeit= Leistung \times Zeit \times Personenzahl.\)

 

\(A=N\times t\times n\\ N=\dfrac{A}{t\times n}\\ \color{blue}N=\dfrac{A}{6\ days\times 2}\)

\(t=\dfrac{A}{N\times n}=\dfrac{A}{(\frac{A}{6\ days\times 2})\times 3}\)

\(t=4\ days\)

3 people clean the kitchen in 4 days.

laugh  !

 28.05.2020
bearbeitet von asinus  28.05.2020

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