Question

two men can do piece of work in 6 hour and four hour respectively after the first has worked for 2hour he is joined by other by when should the work be completed
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Answer 1

Answer:

8 hours

Step-by-step explanation:

because he said that it takes 6hour and 4 hour total 10 hour but he worked 2 hours so if you subtract 10-2 then it is 8 so the Answer is 8