英语类 英数题
A village is going to build a 320-meter-long dam within 8 days.16 workers built 96 meters within 3 days.According to this calculation,how many workers should be added?
人气：441 ℃ 时间：2020-06-21 08:23:16
解答
一个村庄要在8天之内建一座320米长的大坝.已知16个工人3天可以建好96米.那么根据此,还要加多少工人?
96/3/16 =2 （米）一个工人每天能修2米. 320/8/2=20 （个） 工人, 所以还需要加4个工人.
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