| John Hind - Arithmetic - 1840 - 252 pages
...what time can they do three times as much, all working together? Answer: Ihour. 47niin. 23t,see. (23) **A and B can do a piece of work in 10 days; A and C in 12 days,** and B and C in 14 days: in what times can they do it jointly and separately? Answer: All together in... | |
| Roswell Chamberlain Smith - Arithmetic - 1842 - 320 pages
...which fire 5 rounds in 6 minutes, will kill 500-men in 1 hour at the same rate ? A. 20 cannon. 100. **A and B can do a piece of work in 10 days, A and C in 12 days,** and B and C in 14 days ; in what time can they do it jointly and separately? A. Together, 7TV7 days;... | |
| Roswell Chamberlain Smith - 1843 - 320 pages
...trench 50 yards long, 6 feet deep, and 1^ yards broad, in 9 days of 15 hours each ? A. 60 men. 100. **A and B can do a piece of work in 10 days, A and C in 12 days,** and B and C in 14 days; in what time can they do it jointly and separately? A. Together, 7 T V T days;... | |
| Roswell Chamberlain Smith - Arithmetic - 1850 - 314 pages
...which fire 5 rounds in 6 minutes, will kill 500 men in 1 hour at the same rate ? A. 20 cannon. 100. **A and B can do a piece of work in 10 days, A and C in 12 days,** and B and C in 14 days ; in what time can they do it jointly and separately ? A. Together, 7TVy days... | |
| John Fair Stoddard - Arithmetic - 1852 - 324 pages
...„'„ ; therefore, A will do it in 45 days, and B in 90 days. 19. A and B can, together, do a certain **piece of work in 10 days ; A and C, in 12 days** ; and B and C, in 15 days. How many days would it require for each to perform the work alone ? SOLUTION... | |
| Barnard Smith - Arithmetic - 1854 - 366 pages
...£5 richer than by the actual arrangement. Determine the amount of As debt. 5. A and Я can perform **a piece of work in 10 days, A and C in 12 days,** and В and (- in 16 days. In what time would they do it separately ? 6. Having given that 125 Italian... | |
| Thomas H. Palmer - Arithmetic - 1854 - 368 pages
...third can empty it in 6 hours ? In what time would it be filled if all three were set running ? 44. **A and B can do a piece of work in 10 days,** and with the assistance of C they can do it in 8 days. How long would it take C alone to do it ? £g... | |
| Thomas H. Palmer - Arithmetic - 1854 - 356 pages
...third can empty it in 6 hours ? la what time would it be filled if all three were set running ? 44. **A and B can do a piece of work in 10 days,** and with the assistance of 0 they can do it ia 8 days. How long would it take G alone to do it? £g... | |
| James Watson - 1855 - 152 pages
...time in which A, B, and C would do the work, working first all together, and secondly separately. 7. **A and B can do a piece of work in 10 days, A and C in 12 days, B and C in 15 days** ; in what time can they do it jointly and separately 1 8. A can do a piece of work in 7J days, B can... | |
| John Hind - 1856 - 346 pages
...eleven times as much all working together at their respective rates ? Answer: 6hrs. 33min. 45sec. (25) **A and B can do a piece of work in 10 days, A and C in 12 days** and B and C in 14 days: in what times can they do it jointly and separately ? Answers: All together... | |
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