Question

a b c doa pice of work in 8 days a can do alone in 20 days a b do in 14 days how many days will need to a c to complete same worka b c together can do a piece of work in 8 days a alone can do it in 20 days A B can do it in 14 days how many days will need a and c to do same work ​

Answer 1

your answer is 280/19

hope this helps