A can do a piece of work in 30 days. He works for 15 days and then B alone finishes the remaining work in 40 days.The two together can finish the work in
a. 240/11 days b. 250/11 days
c. 303/11 days d. 320/11 days
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Answer:
in one day, work done by A is =1/30
In one day, work done by B is=1/40
Total work done in one day when A and B works together is =1/30+1/40=7/120
The work will be completed in =120/7 days =17.31 days
Therefore the work will be completed in 17 days +some hours
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