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" If A and B together can perform a piece of work in 8 days, A and C together in 9 days, and B and C in 10 days : how many days would it take each person to perform the same work alone ? Ans. "
Mathematics - Page 315
by Samuel Webber - 1808
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The Theoretical and Practical Systematic Arithmetic; Or, Arithmetic Arranged ...

David Henry Cruttenden - Arithmetic - 1853 - 316 pages
...days, and C in 8 days ; in what time can the three perform the same work ? Ans. 2 5?g days 176. A and B can perform a piece of work in 8 days. A and C in 9 days, and B and C in 10 days ; how many days will it take each person to perform the same work...
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A treatise on the elements of algebra, by G. Ainsworth and J. Yeats

G. Ainsworth, J. Yeats - 1854
...together, so that by selling the mixture at 9s. a gallon there may be a gain of 30 per cent 1 123. A and В together can perform a piece of work in 8 days, A and С in 9 days, and В and С in 10 days : in how many days can each perform the work alone ? 124. Divide...
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Annual Report of the Normal, Model, and Common Schools in Upper Canada for ...

Upper Canada. Chief Superintendent of Schools - Education - 1854
...product, is 150. 18. Given 2:c + y = 9, and2y + x = 15, and2z + y = 27, to find x, y and *. 19. A and B can perform a piece of work in 8 days, A and C in 9 days, and B and C in 10 days: hovr many days would it take each to perform the work alone T (Give...
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The popular educator, Volume 4

1854
...body weighed as much as his head and tail ; what is the weight of the whole fish - Ans. 721bs. 99. If A and B together can perform a piece of work in eight days, A and|C together in nine days, and B and C together in ten days,|hnw long will each person...
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A compendious course of mathematics, theoretical and practical

John Radford Young - 1855
...of the second, and one-sixth of the third shall together make 28 J. (9) A and B together can finish a piece of work in 8 days, A and C together in 9 days, and B and C together in 10 days : in how many days can each alone finish the work ? [NOTE. The principles applied...
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Treatise on Algebra, for the Use of Schools and Colleges

William Smyth - Algebra - 1855 - 336 pages
...unknown quantities. 1. Three laborers are employed in a certain work. A and B together can perform it in 8 days, A and C together in 9 days, and B and C together in 10 days. In how many days can each alone perform the same work ? Let x, y and z represent...
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A Treatise on Algebra

Elias Loomis - Algebra - 1855 - 316 pages
...is readily solved by first finding in what time they could finish it if all worked together. Ex. 22. If A and B together can perform a piece of work in a days, A. and C together in b days, and B and C in c days, how many days will it take each person...
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Key to Davies' Bourdon: With Many Additional Examples, Illustrating the ...

Charles Davies, M. Bourdon (Louis Pierre Marie) - Algebra - 1856 - 205 pages
...in the first equation, Ч---- clearing of fractions, 60 + 2x - 5x ; . • . * = 20. '20. If A and В together can perform a piece of work in 8 days, A and C together in.9 days, and B and C in 10 days: how many Jays would it take each person to perform the same work...
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Key to Davies' Bourdon: With Many Additional Examples, Illustrating the ...

Charles Davies, M. Bourdon (Louis Pierre Marie) - Algebra - 1857 - 205 pages
...- in the first equation, „. clearing of fractions, . 60 + 2ж = 5x ; .-. x = 20. 20. If A and В together can perform a piece of work in 8 days, A...in 9 days, and B and C in 10 days : how many days would it take each person to perform the same work alone? Let the work be denoted by 1 ; Let x denote...
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A Treatise on Algebra: For the Use of Schools and Colleges

William Smyth - 1858
...unknown quantities. 1. Three laborers are employed in a certain work. A and B together can perform it in 8 days, A and C together in 9 days, and B and C together in 10 days. In how many days can each alone perform the same work ? Let x, y and z represent...
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