英语类 英数题A team is going to buiid a road.54 workers covered1944 meters in 12 days. lf 18 workers are added, and the time is reduced to a half of before. how long can they build?(suanshi)

问题描述:

英语类 英数题
A team is going to buiid a road.54 workers covered1944 meters in 12 days. lf 18 workers are added, and the time is reduced to a half of before. how long can they build?(suanshi)