A and B Can Together Finish Work in 30 Days. They Worked Together for 20 Days and Then B Left. After Another 20 Days, a Finished the Remaining Work. in How Many Days, a Alone Can Finish the Work? - Mathematics
A and B can together finish work in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days, A alone can finish the work?