He has two …………………………… hens. A.dozens B.dozen Answer and Feedback Answer:B do you want? view more test Xem thêm Share this post Some other questions you may be interested in. A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for Rs. 3200. With the help of C, they completed the work in 3 days. How much is to be paid to C? A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in: A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every third day? A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in: Worker A takes 8 hours to do a job. Worker B takes 10 hours to do a job. How long should it take both A and B, working together to do same job. A and B can together complete a piece of work in 4 days. If A alone can complete the same work in 12 days, in how many days can B alone complete that work ? A can finish a work in 18 days and B can do same work in half the time taken by A. then working together, what part of same work they can finish in a day A tyre has two punctures. The first puncture alone would have made the tyre flat in 9 minutes and the second alone would have done it in 6 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat ? A is twice as good as workman as B and together they finish a piece of work in 18 days. In how many days will B alone finish the work. A does half as much work as B in three-fourth of the time. If together they take 18 days to complete the work, how much time shall B take to do it