 | George Peacock - 1842 - 426 σελίδες
...of the expressions to their most simple forms at the moment of their first formation*. (3) Two men A and B can do a piece of work in 12 days: but /"' alone can do it in 30 days : in what number of days can iK' the work alone '* The following... | |
 | Emerson Elbridge White - 1870 - 350 σελίδες
...the second shall have f as much as the first, and the third \ as much as the other two together. 194. A and B can do a piece of work in 12 days, B and C in 9 days, and A and C in 6 days : how long will it take each alone to do it? 195. A and B... | |
 | 1878 - 446 σελίδες
...8 and 11 years respectively. How much will each receive? Perform by analysis and by proportion. 30. A and B can do a piece of work in 12 days. B and C in 9 days, and A and C in 6 days. How long will it take each to do it ? GEOGRAPHY. 1. What... | |
 | Albert Newton Raub - 1877 - 348 σελίδες
...what does he make if the note is discounted at 6%, no days of grace being allowed ? Ans. $20.80. 71. A and B can do a piece of work in 12£ days, B and C in 15 days, and A and C in 14 days : how many days will it take each alone to do it ? Ans.... | |
 | Robert Johnston (F.R.G.S.) - 1877 - 326 σελίδες
...6 ft. 6 in. deep, with lead which costs £l 8s. per cwt., and weighs 1 Ib. to 18 square inches. 6. A and B can do a piece of work in 12 days, A and С can do the same amount of work in 15, and B and С in 18 days: in what time could each do... | |
 | George Ricks - 1879 - 420 σελίδες
..., J09 , . . 043 8 560 107 days,and2f suchPiecesm ÎÔ7 x S = Î07 1 = 5т¥г ¿ays. Example 3. — A and B can do a piece of work in 12 days ; B working alone can do it in 18 days ; in what time can A do it working alone ? A and B do ^ of the... | |
 | Samuel Mecutchen - 1880 - 288 σελίδες
...4£ days, and C in 5^ days ; in what time can they mow it, working together ? 58. There are 21 1£ gallons of water in a certain cistern, and by one...8£ hogsheads? 59. A and B can do a piece of work in 12f days, and A alone can do it in 28£ days. In what time can B alone do it ? 60. A, B, and C together... | |
 | Samuel Mecutchen - 1880 - 270 σελίδες
...working together ? 58. There are 211£ gallons of water in a certain cistern, and by one pipe 23|- gallons run out in one hour, while by another 52^...8£ hogsheads? 59. A and B can do a piece of work in 12-f days, and A alone can do it in 28£ days. In what time can B alone do it ? 60. A, B, and C together... | |
 | George E. Seymour - 1880 - 332 σελίδες
...1 day? What part can A do alone in 1 day? How long would it take A alone to do the whole work? 25. A and B can do a piece .of work in 12 days; what part of it can they do in 1 day? 26. A and C can do the same work in 15 days ; what part of it... | |
 | 1881 - 516 σελίδες
...10 days; A can mow only f as much as B; how long will it take each to mow a field 4-5.as large? 2. A and B can do a piece of work in 12 days, B and C in 9 days, and A and C in 6 days; how long will it take each alone to do it? WRITTEN ARITHMETIC.... | |
| |
A and B can do a piece of work in 12| days, and A alone can do it in 28^- days. 
