SOLUTION: A can do a piece of work in 16 days and B can do it in 20 days. These worked together for 5 days and then B leaves in how many days will finish the semaining work. (Ans.7)

SOLUTION: A can do a piece of work in 16 days and B can do it in 20 days. These worked together for 5 days and then B leaves in how many days will finish the semaining work. (Ans.7)

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Question 479078: A can do a piece of work in 16 days and B can do it in 20 days. These worked together for 5 days and then B leaves in how many days will finish the semaining work. (Ans.7)
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!

<==>
==>
==>
==> 5 + A = 12
==> A = 7 days for A to finish the remaining work.
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