A and B can do a piece of work in 18 days .B and C in 24 days and A and C in 36 days .In what time can they do it , all works together

A and B can do a work in 8 days, B and C in 12 days, and A and C in 16 days. In what time can they do it, all working together ?

A and B can do a piece of work in 12 days, B and C in 15 days and C and A in 20 days. In how many days can they do it, all working together?

A and B can do a piece of work in 12 days, B and C in 15 days and C and A in 20 days. In how many days can they do it, all working together?

A and B can do a piece of work in 10 days, B and C in 15 days and C and A in 20 days. C alone can do the work in :

A and B can do a piece of work in 18 days. B and C in 24 days, C and A in 36 days. Find the time in whichA, Band C working together can finish the work.