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  • A and B can do a piece of work in 12 days and 15 days respectively while C can destroy the same work in 20 days. In how many days the work will be completed if A start the work from first day follo

A and B can do a piece of work in 12 days and 15 days respectively while C can destroy the same work in 20 days. In how many days the work will be completed if A start the work from first day followed by B on second day and then followed by C on third day and so on..?

Option: 1

20


Option: 2

30


Option: 3

10


Option: 4

113/4


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