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" A can complete a piece of work in 10 days, and B in 12 days... "
Murby's Excelsior Arithmetic, for All Schools and Colleges - Σελίδα 114
των Richard Wormell - 1868
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Elements of Fractional Arithmetic

George Lees - 1843 - 86 σελίδες
.... . . Hence, — — 224, 15 and, consequently the whole regiment = 56 x I5 = 840 men. 2. A can do a piece of work in 10 days, and B in 12 days, in what time could they do it together ? Here, — = part which A can do in one day ; ii '• i 1 11...

Arithmetic, for schools and colleges. (With key).

Richard Wormell - 1868 - 226 σελίδες
...in 12 days, what fraction of the work will he do in a day, and what in 7 days ? (30) If a man do -^ of a piece of work in a day, in how many days will he complete it ? (81) If a man do ft of a piece of work in a day, in how many days will he complete it ? (32) If A...

Algebra

C R. Lupton - 1879 - 194 σελίδες
...that is, 14.K = 2,100, x — 150. IS0 cavalry, 1,500 foot, and 450 artillery. (9) If A can perform a piece of work in 10 days, and B in 12 days, in what time will they finish it together ? Let x = time required, A and В perform respectively ^th...

High School Algebra

Middlesex Alfred Bailey - 1902 - 336 σελίδες
...day each can do - of what he can do in n days. And so on. re PROOF. The condition is that if A can do a piece of work in 10 days, and B in 12 days, A, B, and С can together do it in 4 days. The sum of -j^, .j'j, and -fs, the parts that they do in...

The School Artithmetic: Formerly Called Arithmetic for Beginners

James Cornwell - 1864 - 150 σελίδες
...of a shilling to £ of half-a-crown, and state the result as a fraction of £1. (6). If a man does f of a piece of work in a day, in how many days will he do the whole ? (7). From a piece of cloth worth £10 I sell to one person a third, and to another a...

Graded Lessons in Arithmetic, Βιβλίο 6

Wilbur Fisk Nichols - 1899 - 146 σελίδες
...$1.75, but finding it damaged I decided to sell it at a loss of 15%. What do I ask for it? 7. A can do a piece of work in 10 days, and B in 12 days. In what time can they do it if they work together? 8. What is the least common multiple of 8, 13, 24...

New Graded Lessons in Arithmetic: Part I-[III], Μέρος 2

Wilbur Fisk Nichols - 1911 - 268 σελίδες
...product of 2.1 and .005. 8. Divide two-tenths by five ten-millionths. 9. Add 2i, 3f Hi 7Д. 10. A can do a piece of work in 10 days, and B in 12 days. What part can each do in a day? What part can both do in a day? In what time can they do it by working together?...

Second Course in Algebra

Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - 1918 - 296 σελίδες
...yards greater and whose width is 3 yards less. Find the dimensions of the square court. 12. A can do a piece of work in 10 days and B in 12 days. How many days will they both require working together ? HINT. Let x = number of days required by A...

Complete School Algebra

Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - 1919 - 536 σελίδες
...yards wider, its area would be 1260 square feet less. Find the dimensions of the rectangle. 8. A can do a piece of work in 10 days and B in 12 days. How many days will they both require, working together? HINT. See the solution of Exercise 20 on page...




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