 | Daniel Adams - Arithmetic - 1828 - 286 pages
...C in 6 days, and A and C in 5 days : in what time can they all dc it together ? Ans. 3-^ days. 111. A and B can do a piece of work in 5 days ; A can do it in 7 days ; in how many days can B do it ? Ans. 1 7£ days. 112. A man died, leaving... | |
 | Arithmetic - 1829 - 196 pages
...must a ladder he placed, so as to reach the top of hoth towers? Ans. ISQJL from the highest lower. 31. A and B can do a piece of work in 5 days ; A can do it in 7 days ; in what time can B do it ? Ans. 17i days. 32. Suppose two wheels, the one... | |
 | Daniel Adams - Arithmetic - 1830 - 268 pages
...C in 6 days, and A and C in 5 days : in what time can they all do it together ? Ans. 3^- days. 111. A and B can do a piece of work in 5 days ; A can do it in 7 days ; in how many days can B do it ? Ans. 1 7£ days* 112. A man died, leaving... | |
 | Daniel Adams - Arithmetic - 1830 - 294 pages
...C in 6 days, and A and C in 5 days : in what time can they all do it together ? Ans. 3^ days. 111. A and B can do a piece of work in 5 days ; A can do it in 7 days ; in how many days can B do it ? Ans. 17£ days. 112. A man died, leaving $... | |
 | Daniel Adams - Arithmetic - 1831 - 276 pages
...C in 6 days, and A and C in 5 days : in what time can they all do it together ? Ans. 3^- days. 111. A and B can do a piece of work in 5 days ; A can do it in 7 days ; in how many days can B do it ? Ans. 17£ days. 112. A man died, leaving $... | |
 | Daniel Adams - Arithmetic - 1833 - 268 pages
...in 6 days, and A and C in 5 days : in what time can they all do it together ? Ans. 3^sr days. 111. A and B can do a piece of work in 5 days ; A can do it in 7 days ; in how many days can B do it ? Ans. 17£ days. 112. A man died, leaving $... | |
 | Frederick Emerson - Arithmetic - 1834 - 300 pages
...a pound. In what proportion must he mix them, in order to afford the mixture at $ 1 . a pound ? 14. A and B can do a piece of work in 5 days; A alone can do it in 7 days. In what time can B do it ? 15. After A has travelled 51 miles, B sets... | |
 | Daniel Adams - 1839 - 268 pages
...C in 6 days, and A and C in 5 days : in what time can they all do it together ? Ans. 3^- days 111. A and B can do a piece of work in 5 days ; A can do t in 7 days ; in how many days can B do it ? Ans. 17£ days. 112. A man died, leaving $... | |
 | Frederick Emerson - Arithmetic - 1839 - 300 pages
...$1.10 a pound. In what proportion must he mix them, in order to afford the mixture at $ 1 a pound ? 14. A and B can do a piece of work in 5 days; A alone can do it in 7 days. In what time can B do it ? 15. After A has travelled 5imiles, B sets out... | |
 | Daniel Adams - Arithmetic - 1840 - 278 pages
...C in 6 days, and A and C in 5 days : in what time can they all do it together ? Ans. S-fj days 111. A and B can do a piece of work in 5 days ; A can do t in 7 days ; in how many days can B do it ? Arts. 17£ days. 112. A man died, leaving $... | |
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A and B can do a piece of work in 5 days ; A can do it in 7 days ; in how many days can B do it ? Ans. 
