Question: a alone can complete a work in 18 days?
Answer: Remaining work= 1/3 rd of the work. Therefore Number of days it would take for A alone to complete the remaining work = 100/3 * 18/100 = 6 days. Originally Answered: A can finish work in 18 days while B can finish it in 15 days. B worked alone for 10 days and then left the job.