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A can build up the structure in 8 days and B can break it in 3 days. A has worked for 4 days and then B joined to work with A for another 2 days. In how many days will A alone build up the remaining part of the structure?

1:
10
2:
9
3:
12
4:
8
5:
22/3
Solution:
Chapter Name: Time and Work


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