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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. "
A New Introduction to the Science of Algebra ... - Σελίδα 184
των Silas Totten - 1836 - 304 σελίδες
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Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - 1848 - 300 σελίδες
...and j of the third, may be all equal to each other. Ans. 8, 12, and 16. 9. If A and B together can do a piece of work in 8 days, A and C together in 9 days, and B and C in ten days ; how many days would it take each to perform the same work alone ? Ans. A 14f£, B 17ff,...

Elements of Algebra: Including Sturms' Theorem

1848 - 394 σελίδες
...lasted the woman JO days ; how many days would the man be in drinking it alone ? Ans. 20 days. 20. If A and B together can perform a piece of work in 8 days, A and С together in 9 days, and B and С in 10 days ; how many days would it take each person to perform...

A Treatise on Algebra: For the Use of Schools and Colleges

Stephen Chase - 1849 - 348 σελίδες
...the whole stock is c. How much did each contribute ? See § 55. 4. ft (LC ' . B's Part, &c5. 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 ; in how many days could each person, alone, perform the same work...

The American Arithmetic: In which the Principles of Numbers are Explained ...

James Robinson - 1850 - 342 σελίδες
...5 for 2 pence, found that she had lost 4 pence. What number of eggs did she purchase ? 189. A and B can perform a piece of work in 8 days, A and C can perform it in 9 days, and B and C can perform it in 10 days. In what number of days can each perform...

Bonnycastle's Introduction to Algebra: Containing the Indeterminate and ...

John Bonnycastle - 1851 - 288 σελίδες
...the side by one man, he wants 25 to fill up the square*; how many soldiers had he ? Ans. 24000. 36. If A and B together can perform a piece of work in...in 10 days, how many days will it take each person to perform the same work alone. Ans. A 14ff- days, B 17f-f, and c 23^. QUADRATIC EQUATIONS. A QUADRATIC...

Ray's Algebra Part Second: An Analytical Treatise, Designed for High Schools ...

Joseph Ray - 1852 - 408 σελίδες
...such parts, that the quotient of the greater divided by the less shall be q, with a remainder r. 13. If A and B together can perform a piece of work in a days, A and C together the same in b days, and B and C together in c days: find the time in which...

The Theoretical and Practical Systematic Arithmetic; Or, Arithmetic Arranged ...

David Henry Cruttenden - 1853 - 330 σελίδες
...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...

Annual Report of the Normal, Model, and Common Schools in Upper Canada for ...

Upper Canada. Chief Superintendent of Schools - 1854 - 196 σελίδες
...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...

The popular educator, Τόμος 4;Τόμος 7

Popular educator - 1852 - 1272 σελίδες
...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...

A treatise on the elements of algebra, by G. Ainsworth and J. Yeats

G. Ainsworth - 1854 - 216 σελίδες
...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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