A, B and C can complete a job by themselves
in 10 days, 15 days and 30 days respectively.
A and B start the work together but after
2 days B leaves. The remaining work is then
completed by A and C. How long did A and C
work together?
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no you are you going back to school and Sir America is a good thing for 55inches and mam and friends and mam and 3AM and Sir the most
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