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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.
Mathematics: Compiled from the Best Authors and Intended to be the Text-book ... - Page 352
1801 - 426 pages

## Key to Dodd's Algebra: Containing All the Problems, and the More Difficult ...

James William Dodd - 1859 - 188 pages
...— - ; and y+7 3 x+2 From these Equations we shall find x—4, and y=5. Hence the fraction is |. 26. A and B together 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 would it take each person to perform the work alone...

## Algebra for High Schools and Colleges: Containing a Systematic Exposition ...

James B. Dodd - Algebra - 1859 - 368 pages
...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...

## The University Algebra ...

John Fair Stoddard, William Downs Henkle - Algebra - 1859 - 538 pages
...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...

## A Treatise on Elementary and Higher Algebra

Theodore Strong - Algebra - 1859 - 570 pages
...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...

## Elements of Algebra: On the Basis of M. Bourdon, Embracing Sturm's and ...

Charles Davies - Algebra - 1860 - 412 pages
...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....

## New Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - Algebra - 1860 - 330 pages
...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...

## Elements of Algebra: On the Basis of M. Bourdon, Embracing Sturm's and ...

Charles Davies - Algebra - 1860 - 412 pages
...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...

## Elementary Algebra: Embracing the First Principles of the Science

Charles Davies - Algebra - 1861 - 322 pages
...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,...