Six painters

Six painters paint an area of 120 m2 in 4 hours. How long does it take for 12 painters to paint 480 m2 with the same performance?

Correct answer:

t =  8 h

Step-by-step explanation:

a=120/(6 4)=5 m2/h/m  t=48012 a=48012 5=8 h

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