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A man can do work in 6 hours . Find the workdone by B if A and B both together can finish the work in 3.5 hours.​
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24 votes
24 votes
A man can do work in 6 hours . Find the workdone by B if A and B both together can finish the work in 3.5 hours.​

User Lolo
by
3.5k points

1 Answer

7 votes
7 votes

Answer:

8.4 hours

Explanation:


(1)/(6) + (1)/(x) = (1)/(3.5)


3.5x + 21 = 6x


2.5x = 21


x = 8.4

So B can complete the task in 8.4 hours.

User Mani Ratna
by
2.8k points
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