Time and Work
Algebra
Level
2
A can do a work in 30 days while B can do it in 40 days. In how many days A and B working together can do it?
The answer is 17.14.
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1 solution
A can do 1/30th of work in a day B can do it in 1/40th of a in a day therefore, together they will take 3 0 1 + 4 0 1 = 1 2 0 7 th of work in a day. thus; they will take 7 1 2 0 or 17.14 days to finish the work together.