A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job? | MCQ Hive

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Q A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job?

A A. 48
B B. 34(2/7)
C C. 44
D D. 45

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