英语类 英数题
问题描述：
英语类 英数题
A team is goingto buiid a road.54workers 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)
答
1296m.每人每天可以bulid 3m,72个人6天就是1296m
1944/(54*12)=3
(54+18)*3*6=1296