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Bøker Bok 8190 av 95If A and B together can perform a piece of work in 8 days, A and C together in 9...
" 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. "
An Introduction to Algebra: With Notes and Observations: Designed for the ... - Side 98
av John Bonnycastle - 1811 - 220 sider
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Questions for Written Examinations: An Aid to Candidates for Teachers ...

John Swett - 1872 - 206 sider
...chosen wanted but 3,000 of having twice as many votes as his opponent. How many voted for each. 10. If A and B together can perform a piece of work in 1 2 days ; A and C in 1 5 days, and B and C in 20 days. How many days will it take each person to do...
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Treatise on the elements of algebra

James Bryce - 1872
...past 8. The clock is known to gain -fa of a second in 24 hours. Find the gaming rate of the watch. 66. 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 together in с days, find the time in which each can...
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The Complete Algebra: Designed for Use in Schools, Academies, and Colleges

Joseph Ficklin - 1874 - 418 sider
...would cost $1.56 ; find the price per pound of each. Ans. Tea CO cents, sugar 20 cents. 11. A and S together can perform a piece of work in 8 days, A and С together in 9 days, and В and С in 10 days ; in what time could each person alone perform the...
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The Complete Algebra: Embracing Simple and Quadratic Equations, Proportion ...

Edward Olney - 1877 - 390 sider
...— - — days. J> •' ' ab + ac + be J Deduce from these results those of the preceding example. 8. 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 together in 10 days, in how many days can each alone perform the same work ? Ana., A in 14f* days,...
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The Complete Algebra: Embracing Simple and Quadratic Equations, Proportion ...

Edward Olney - 1878 - 439 sider
...Jointly, they require ^ + ac + bc days. Deduce from these results those of the preceding example. 8. 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 together in 10 days, in how many days can each alone perform the same work ? Ans., A in 14ff days,...
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New Elementary Algebra: Designed for the Use of High Schools and ..., Bok 1

Benjamin Greenleaf - 1879 - 336 sider
...the quantity of each ? Ans. Wheat, 29 bushels ; barley, 44 bushels ; and oats, '3 bushels. 8. 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 can each alone perform it ? Ans. A, in 1-1JJ-...
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Key to Davies' Bourdon: With Many Additional Examples, Illustrating the ...

Charles Davies - 1879 - 277 sider
...!4 JL_J_. x "* 30 ~ 12 1 • clearing of fractions, 60 + 2x = 5x ; . • . ж = 20. 20. If A and В together can perform a piece of work in 8 days, A and С together in 9 days, and В and 0 in 10 days : how many days would it take each .person to perform...
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The Complete Algebra ...

Edward Olney - 1881 - 439 sider
...-jr ab + ac— be JJJ ab + ac + bc days. Deduce from these results those of the preceding example. 8. 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 together in 10 days, in how many days can each alone perform the same work? Ans., A in 14f£ days,...
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The Inductive Algebra: Embracing a Complete Course for Schools and Academies

William James Milne - 1881 - 347 sider
...the fourth divided by 4, the sun), product, difference, and quotient shall all be equal. 6. A and B can perform a piece of work in 8 days; A and C can do it in 9 days, and B and C in 10 days. In how many days can each do the same work alone? 7. A...
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The Normal Elementary Algebra: Containing the First Principles of the ...

Edward Brooks - 1871 - 154 sider
...Am. 4; 8; 3; 12. 9. A and B can do a piece of work in 12 days, A and C in 15 days, and B and C in 20 days ; how many days will it take each person to perform the same work alone ? Ans. A, 20; B, 30; C, 60. 10. The sum of 3 fractions is 2^ : the sum of the first and third equals twice the...
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