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a can complete a piece of work in 10 days B can do it in 12 days C can do it in 15 days in how many days will they finish the work if they work together​

User Andrebruton
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YOUR ANSWER IS IN THE ATTACHMENT.

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a can complete a piece of work in 10 days B can do it in 12 days C can do it in 15 days-example-1
User ALL
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