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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 14JA days, B 17fa, and C 23JT. "
Elementary Algebra: Embracing the First Principles of the Science - Page 114
by Charles Davies - 1842 - 258 pages
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A Treatise on Algebra: For the Use of Schools and Colleges

William Smyth - Algebra - 1858 - 344 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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New Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - Algebra - 1859 - 324 pages
...the second, and | of the third, may be all equal to each other. Ans. 8, 12, and 16. 6. If A and В together can do a piece of work in 8 days, A and С together in 9 days, and Б and С in ten days, how many days would it take each to perform the same...
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Key to Dodd's Algebra: Containing All the Problems, and the More Difficult ...

James William Dodd - 1859 - 188 pages
...— , the part both would drink in 1 day. x 30 12 From this Equation we shall find x = 20 days. 29. If A and B together can do a piece of work in 9 days, and A alone could do it in 15 days, in what time could B alone do the work ? Let x represent...
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Algebra for High Schools and Colleges: Containing a Systematic Exposition ...

James B. Dodd - Algebra - 1859 - 368 pages
...in 1 day, the equation will be [- — == — , the part both would drink in 1 day. Ans. 20 days. 29. If A and B together can do a piece of work in 9 days, and A alone could do it in 15 days, in what time ought B alone to accomplish the work ? Ans....
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New Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - Algebra - 1860 - 332 pages
...first, i of the second, and ^ of the third, may be all equal to each other. Ans. 8, 12, and 16. 6. If A and B together can do a piece of work in 8 days, A and C together in 9 days, and J3 and C in ten days, how many days would it take each to perform the same work alone? ' Ans. .4, 14f...
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Elements of Algebra: On the Basis of M. Bourdon, Embracing Sturm's and ...

Charles Davies - Algebra - 1860 - 412 pages
...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 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 14f |- days,...
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Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - Algebra - 1860 - 328 pages
...the second, and j of the third, may be all equal to each other. Ans. 8, 12, and 16. 9. If A and В together can do a piece of work in 8 days, A and С together in 9 days, and В and С in ten days ; how many days would it take each to perform the...
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Algebra: Adapted to the Course of Instruction Usually Pursued in the ...

Paul Allen Towne - Algebra - 1865 - 314 pages
...to the unit's place, whil.it the unit figure appears at the left. What is the number? 21 . * A and B can do a piece of work in 8 days ; A and C in 9 days; B and C in 10 days. In what time can each do the work alone? And in what time if all work...
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The University Algebra

John Fair Stoddard, William Downs Henkle - Algebra - 1866 - 546 pages
...and 72 yards ; and circumferences of the wheels 20 and 12 yards. 22. If A and B together can perform a piece of work in 8 days, A and C together in 9 days, and B and O together in 10 days, in how many days can each alone perform the same work 1 Ans. A in 14J days,...
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New Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - Algebra - 1867 - 316 pages
...the second, and ^ of the third, may be all equal to each other. Ans. 8, 12, and 16. 6. If A and J3 together can do a piece of work in 8 days, A and C together in 9 days, and and G in ten days, how many days would it take each to perform the same work alone? Ans. A, 14|i;...
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