Planting 27201

In the forest, there are 84 workers employed in planting saplings. Working 10 hours a day, they would finish the job in 24 days. After 7 days, 14 workers leave. How long will it take the others to finish planting the saplings if they work 12 hours a day from that day on?

Correct answer:

t =  17 d

Step-by-step explanation:

w=84 10 24=20160 h  w2=w84 10 7=2016084 10 7=14280 h  t1=w2/(8414)=14280/(8414)=204 h  t=t1/12=204/12=17 d



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