PS Archive | A alone can do a certain job in 5 hours, B alone can do the

A alone can do a certain job in 5 hours, B alone can do the job in 3 hours. If A worked the job 2 hours alone and later B joined and finished the rest of the job, in how many total hours are needed to complete the job?


Answer : 25/8

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Statistics : Posted by Hyeyoung • on 28 Aug 2023, 05:41 • Replies 0 • Views 59

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