Question

it take them to do the
In what time can each finish it, working alone?
10. A can do a piece of work in 80 days. He works at it for 10 days and then B alone finishes the
remaining work in 42 days. In how many days could both do it?
11. A and B can together finish a work in 30 days. They worked at it for 20 days and then B left. The
in ? more days. In how many days can A alone do it?​

Answer 1

byegii to giovy please mark your chvuvuh