 | George Roberts Perkins - Arithmetic - 1846 - 266 pages
...employed in the purchase. If the whole sum employed was 15 cents, I should gain 1 cent. 24. If A can can do a piece of work in 3 days, B in 4 days, and C in 5 days, how much longer will it take B to do it alone, than it will take A and C together to do it ? i - Ans. 2T2j times.... | |
 | George Roberts Perkins - Arithmetic - 1849 - 346 pages
...employed in the purchase. If ! the whole sum employed was 15 L cents, I should gain 1 cent. 25. If A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many times longer will it take B to do it alone, than it will take A and C together to do it ? Ans.... | |
 | George Roberts Perkins - Arithmetic - 1850 - 364 pages
...employed in the purchase. If j the whole sum employed was 1 5 I cents, I should gain 1 cent. 25. If A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many times longer will it take B to do it alone, than it will take A and C together to do it ? Ans.... | |
 | George Roberts Perkins - Arithmetic - 1851 - 356 pages
...employed in the purchase. If ] the whole sum employed was 15 I cents, I should gain 1 cent. 25. If A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many times longer will it take B to do it alone, than it will take A and C together to do it ? Ant.... | |
 | Charles Davies - Arithmetic - 1856 - 450 pages
...other. A goes 5 miles an hour, and B 4 miles : how many miles must each travel before they meet ? 49. A can do a piece of work in 3 days, B in 4 days, and C in 6 days : in what time will they all do it, working together ? 50. A can build a wall in 15 days, but... | |
 | Charles Davies - Arithmetic - 1861 - 496 pages
...shadow of 7 feet, wLat is the height of a steeple, whose shadow is 196 feet, at the time of day? 64. A can do a piece of work in 3 days, B in 4 days, and C in 6 days : in what time will they do it, working together ? 65. A can build a wall in 15 days, but with... | |
 | Daniel Leach, William Draper Swan - Arithmetic - 1861 - 344 pages
...paid for it, and 12| per cent, less than he asked. What did he ask for it ? No. V. 1. A can perform a piece of work in 3 days, B in 4 days, and C in 12 days. In what time will they finish it if they all work together ? 2. What number is that to which,... | |
 | Isaac Stone - Educational tests and measurements - 1869 - 278 pages
...and 7 o'clock will the hour and minute hands of a clock be exactly together? Art. 199. Ex. 46. 13. A can do a piece of work in 3 days; B, in 4 days; C, in 6 days : in what time will they all do it, working together? Art. 199. Ex. 49. CAUSE AND EFFECT.... | |
 | Isaac Stone - Educational tests and measurements - 1869 - 272 pages
...and 7 o'clock will the hour and minute hands of a clock be exactly together? Art. 199. Ex. 46. 13. A can do a piece of work in 3 days ; B, in 4 days ; C, in 6 days: in what time will they all do it, working together? Art. 199. Ex. 49. CAUSE AND EFFECT.... | |
 | Charles Davies - Arithmetic - 1870 - 492 pages
...7 feet, what is the height of a steeple, whose shadow is 196 feet, at the same time of day ? 64. A can do a piece of work in 3 days, B in 4 days, and C iu 6 days : in what time will they do it, working together ? 05. A can build a wall in 15 days, but... | |
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A can do a piece of work in 3 days, B in 4 days, and C in 5 days. How much can each do in a day ? How much can all do in a day? 
