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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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First Lessons in Algebra: Being an Easy Introduction to that Science ...

Ebenezer Bailey - 1835 - 258 σελίδες
...of the other two, and the third with £ of the other two, shall each be equal to 34. 6. If 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 the same ,work ? 7. Says...

An Introduction to Algebra: With Notes and Observations : Designed for the ...

John Bonnycastle - 1837 - 296 σελίδες
...one man, he wants 25 to fill up the square ; how many soldiers had he ? Ans. 24000. 36. 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 take each person to perform...

Elements of Algebra

1838 - 372 σελίδες
...lasted the woman 30 days ; how many days would the man alone be in drinking it ? 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 ? Ans. A 14a.| days, B 17fi, and C 23JT. 21....

An Elementary Treatise on Algebra, Theoretical and Practical: With Attempts ...

John Radford Young - 1838 - 368 σελίδες
...(62.) QUESTIONS PRODUCING SIMPLE EQUATIONS INVOLVING THREE UNKNOWN QUANTITIES. QUESTION I. If A and В can perform a piece of work in 8 days, A and C together in 9 days, and В and C together in 10 days ; in how many days can each alone perform the same work ? Let the number...

First Lessons in Algebra: Embracing the Elements of the Science

Charles Davies - 1839 - 264 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,...

An Elementary Treatise on Algebra, in Theory and Practice: With Attempts to ...

John D. Williams - 1840 - 634 σελίδες
...284+24=308, whence z=154 ' and, consequently, з? -\- 284 = 24000, the whole number of men. 48. 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 take each person to perform...

Arithmetic: As Taught in the Troy Episcopal Institute

W. F. Walker - 1841 - 246 σελίδες
...work jointly? Ans. | of a week. (69.) If A and B together can perform a work in 8 days, and A and C in 9 days, and B and C in 10 days, how many days will it take each to perform the work alone ? Ans. A 14f|da.; B 17f?da.; C 23T^da. § 131. 1. Questions very often occur...

Elements of Algebra

Charles Davies - 1842 - 368 σελίδες
...lasted the woman 30 days ; how many days would the man alone be in drinking it ? 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 ? Ans. A 14ff days, B 17ff, and C 23J y ....

Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - 1842 - 284 σελίδες
...and ^ 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 14ff , B 17f|,...

A Treatise of Arithmetic: Designed for the Use of the Elementary Schools ...

1843 - 142 σελίδες
...in 12 days, and B and C can do in 16 days ; in what time could each do it separately ? 24. A and B can perform a piece of work in 8 days, A and C can do the same in 12 days, and B and C in 16 days ; in what time could each separately perform it,...




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