A and B can finish a piece of work in 15 days,Band C in 20 days while C and A in 30 days.How long will it take A to finish the work alone?
1. 40
2. 24
3. 120
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A and B can finish a piece of work in 15 days,Band C in 20 days while C and A in 30 days.How long will it take A to finish the work alone?
1. 40
2. 24
3. 120
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Answer:
A can finish work in 40days