A,B and C can do a work in 20,25 and 30, respectively. They together started the work, but B adn A left the work 7 days and 4 days, respectively before completion of the work. How many days did C work for?

A, B and C can complete a work in 16, 24 and 32 days, respectively. They started together but C left after 4 days of starting and A left 6 days before completion of the work. In how many days will the work be completed ?

A,B and C can do a work in 20,45 and 120 days respectively.They started the work. A left 10 days before and B left 5 days before the completion of work. In how many days is the total work completed ?

A,B and C can do a work in 20,45 and 120 days respectively.They started the work. A left 10 days before and B left 5 days before the completion of work. In how many days is the total work completed ?

A, B and C can complete a piec of work in 25, 30 and 50 days. Respectively. They started the work together But A and C left 2 days before the completion of the work. In how many days will the work in completed ?

A, B and C can do a work in 12, 15 and 18 days respectively. They started the work together but A left after 2 days and B left the work 3 days before the competition of work. Find the number of days it took them to complete the work.

A,B and C can complete a work in 10,12 and 15 days respectively.They started the work together.But A left the work 5 days before its completion.B also left the work 2 days after A left.In how many days was the work completed? 4 b.15 c.7 d.8