A labourer can do a job in 3 days, a second can do it in 6 days, and a third can do it in 7 days. How many days can the three do the job if they work together?

Name: A labourer can do a job in 3 days, a second can do it in 6 days, and a third can do it in 7 days. How many days can the three do the job if they work together?
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The Answer of A labourer can do a job in 3 days, a second can do it in 6 days, and a third can do it in 7 days. How many days can the three do the job if they work together?

A Labourer Can Do a Job in 3 Days, a Second