If one worker can complete ajob in 6 days and asecond worker takes 12 days to complete the same job.how long will it tak

分类: 作业答案 • 2022-03-30 15:34:59

问题描述：

If one worker can complete ajob in 6 days and asecond worker takes 12 days to complete the same job.how long will it take them working together?

答

4 days