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 Bøker Bok 61–70 av 96 på If 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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## Algebra for High Schools and Colleges: Containing a Systematic Exposition ...

James B. Dodd - 1859 - 306 sider
...the denominator being doubled, and the numerator increased by 2, the value becomes f I Ans. |. 26. A and B together can perform a piece of work in 8 days, A and 0 in 9 days, and B and C in 10 days. How many days would it take each person to perform the same" work...
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## A Treatise on Elementary and Higher Algebra

Theodore Strong - 1859 - 551 sider
...x — 10. Hence, 15a; and 52y become 150 and 156, which are the required numbers. 11. " If A and В together can perform a piece of work in 8 days, A and С together in 9 days, В and С together in 10 days, how many days will it take each person to perform...
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## The University Algebra ...

John Fair Stoddard, William Downs Henkle - 1859 - 528 sider
...Ans. The ropes, 360 and 72 yards } and circumferences of the wheels 20 and 12 yards. 22. If A and В together can perform a piece of work in 8 days, A and С together in 9 days, and В and О together in 10 days, in how many days can each alone perform the...
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## Elements of algebra: on the basis of M. Bourdon, embracing Sturm's and ...

Bourdon (Louis Pierre Marie, M.) - 1860 - 400 sider
...it lasted the woman 30 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...in 9 days, and B and C in 10 days ; how many days would it take each person to perform the same work alone 1 Ans. A 14|| days, B 17f f, and C 23 j7T....
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## New Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - 1860 - 299 sider
...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 - 1860 - 400 sider
...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, B 17-|f , and C 23j7T. 21. A laborer can do a certain work expressed by a, in a time expressed...
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## Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - 1861 - 303 sider
...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 14||, B 17£f,...
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## Dublin examination papers

1863
...expression (aV - a'V) (b"e - be") - (bo - b'e) (a"& - « b(a,'e''- aV) + b'(a"e- ac") + b"(ae'~ 13. If A and B together can perform a piece of work in m days, A and C in » days, and B and C in p days, in what time could A, B, and C separately perform...
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## Treatise on Algebra

1864 - 503 sider
...woman 30 days ; how many drn would the man alone be in drinking it ? Ans. 20 daví. (40) If A and В together can perform a piece of work in 8- days ; A and С together in 9 days ; and В and С in 10 days : how many days will it nú* each person to perform...
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## A Treatise on Algebra

Elias Loomis - 1864 - 359 sider
...remains due to him, and to the other one third of what remains due to him. What were the debts ? Ex. 21. If A and B together can perform a piece of work in 12 days, A and C together in 15 days, and B and C in 20 days, how many days will it take each person...
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