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" A can do a piece of work in 8 days, and B can do it in 10 days. In what time can both do it together ? 22. "
Intermediate Arithmetic - Página 118
por William James Milne - 1900 - 219 páginas
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The Elements of Mechanical Engineering, Volumen1

1897
...as horses, lacking 4 ; how many has he of each kind ? / 12 horses. Ans. -j 40 cows. ( 66 sheep. 3. A can do a piece of work in 8 days, and B can do it in 10 days; in what time can they do it working together ? Ans. 4J days. 4. Find five consecutive numbers whose sura is ISO. Ans....
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The Senior Arithmetic for Grammar Schools

Charles Edward White - 1897 - 291 páginas
...6. What is the value of iii ? f 7. What number must be added to 22| that the sum may be 99£ ? 8. A can do a piece of work in 8 days, and B can do it in 6 days. In what time can they do it working together ? 9. A pole stands £ in the mud, | in the water,...
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Arithmetic, algebra, logarithms, geometry and trigonometry, elementary ...

International Correspondence Schools - 1899
...as horses, lacking 4; how many has he of each kind ? i 12 horses. Ans. -J 40 cows. ( 56 sheep. 3. A can do a piece of work in 8 days, and B can do it in 10 days ; in what time can they do it working together ? Ans. 4J days. 4. Find five consecutive numbers whose sum is 150. Ans....
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A Treatise on Chemistry and Chemical Analysis: Arithmetic, elementary ...

1900
...sheep as horses, lacking 4; how many has he of each kind ? ' 12 horses. Ans. 40 cows. 56 sheep. 3. A can do a piece of work in 8 days, and B can do it in 10 days; in what time can they do it working together ? Ans. 4J days. 4. Find five consecutive numbers whose sum is 150. Ans....
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Grammar School Algebra

George Edward Atwood - 1900 - 253 páginas
...24 years older than his son, but two years ago he was 4 times as old. Find the father's age. 104. A can do a piece of work in 8 days, and B can do it in 12 days. If B works two days alone, in how many days can he complete it with A's assistance ? 105....
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A Textbook on Metallurgy of Gold, Silver, Copper, Lead, and Zinc, Volumen1

International Correspondence Schools - 1902
...as horses, lacking 4; how many has he of each kind ? i 12 horses. Ans. -I 40 cows. ( 56 sheep. 8. A can do a piece of work in 8 days, and B can do it in 10 days; in what time can they do it working together ? Ans. 4{ days. 4. Find five consecutive numbers whose sum is 150. Ans....
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Exercises in Algebra

George Edward Atwood - 1909 - 235 páginas
...24 years older than his son, but two years ago he was 4 times as old. Find the father's age. 104. A can do a piece of work in 8 days, and B can do it in 12 days. If B works two days alone, in how many days can he complete it with A's assistance ? 105....
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Preston-Stevens Standard Arithmetic, Libro 2

DeForest A. Preston, Edward Lawrence Stevens - 1910 - 351 páginas
...of f is ^ ? 36. If from 18f yards of cloth 2| yards are cut, what part of the whole is taken? 37. A can do a piece of work in 8 days and B can do it in 6 days. How long will it take them to do the work if they work together? ss. If f of 9 bushels of oats...
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Kimball's Commercial Arithmetic: Prepared for Use in Normal, Commercial and ...

Gustavus Sylvester Kimball - 1911 - 418 páginas
...money? 27. f of the sum of two numbers is 1000. Their difference is 500, what are the numbers? 28. A can do a piece of work in 8 days, and B can do the same work in 6 days. In how many days can they both do it, working together? Solution. Since A...
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Prison Keeper Examination Instruction, New York City, New York State and New ...

1917 - 27 páginas
...income; how much does he save in a year? 3. Multiply 78,563 by 26, and divide the result by 13. 4. A can do a piece of work in 8 days, and B can do it in 11 days. How long will it take them to do it working together? 5. The cost of feeding 860 prisoners...
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