Seamstresses 4635

Eight seamstresses have to complete the order in 16 days. After four days, the two seamstresses switched to another job. In how many days will the order be fulfilled?

Correct answer:

t =  20 d

Step-by-step explanation:

m=8 16=128  a=m8 4=1288 4=41=0.25 b=m82=12882=6430.0469  a+(t4) b=1 0.25+(t4) 0.046875=1  0.046875t=0.9375  t=0.0468750.9375=20  t=20=20 d

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