Workers 4168

Ten workers manage to repair the road in 22 days. After four days, two more workers joined to speed up the work. How many days does it take to repair the road?

Correct answer:

t =  19 d

Step-by-step explanation:

w=22 10=220 t=4+(w4 10)/(10+2)=4+(2204 10)/(10+2)=19 d

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