Question

A and B working separately can do a work in 5 days and 7 days respectively. If B starts the work
and they work on alternate days. In how many days will the work be completed?



dont post i dont know bla bla if u done ill report u ​

Answer 1

Answer:

So, percentage of work A compltes in one day = 100/9 = 11.11%. B can complete work in 12 days. B's one day work = 100/12 = 8.33%. A and B together can complete = 11.11 +8.33 = 19.44% of work in one day