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Bøker Bok 9196 av 96If 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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New Elementary Algebra Embracing the First Principles of the Science

Charles Davies - 1891 - 294 sider
...8d. for the horse; £6 13s. 4d. for the harness ; £40 for the chaise. 6. 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 10 days, how many days would it take each to perform the same work alone? Am. A, 14f£ days; B, 17£f ; C, 7. Three persons,...
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High School Algebra: Embracing a Complete Course for High Schools and Academies

William James Milne - 1892 - 408 sider
...and the fourth divided by 4, the sum, product, difference, and quotient will 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....
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Report of the Superintendent of Public Instruction

Michigan. Department of Public Instruction - 1896
...V^~and give rule. Voz — ft 3Vää; — 26 8. Solve - — — — Vox + b &/ax + bb 9. 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 together in 10 days, in how many daya can each alone perform the...
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The Normal Elementary Algebra, Del 1

1901
...Ans. 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 ? Ana. A, 20; B, 30; 0,60. 10. The sum of 3 fractions is 2J : the sum of the first and third equals...
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Report of the Superintendent of Public Instruction

Michigan. Department of Public Instruction - 1905
...u+x+y+z=17 v+x+y+z=18 6. Find the value of x in the following equations: (b) 3x*+2x=21. 7. 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 work alone? 8. Robbers...
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Joint Documents ... for the Year ..., Del 2

Michigan. Legislature - 1896
...Si/ax — 26 8. Solve - — — — Vo« + 6 3Vua; + 56 9. If A and B together can perform a pieoe 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 work? 10. A is indebted to B $1,000...
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