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" If 4 men can do a piece of work in 8 days, how many men would it take to do the same work in 4 days ? 20. "
Colburn's First Lessons: Intellectual Arithmetic, Upon the Inductive Method ... - Σελίδα 78
των Warren Colburn - 1849 - 160 σελίδες
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Intellectual Arithmetic, Upon the Inductive Method of Instruction

Warren Colburn - 1836 - 216 σελίδες
...how much remains in the cistern in an hour ? and in how many hours will the cistern be filled ? 19. If 4 men can do a piece of work in 8 days, how many...same work in 4 days ? 20. If 6 men can do a piece of woj'k) in 9 days, in how many days would 2 men do it ?U 21. If 8 men can do a piece of work in 5 days,...

The Sure Guide to Written Arithmetic: Designed for Beginners, and Summer ...

Peirpont Edward Bates Botham - 1836 - 104 σελίδες
...2. If 2 men in 3 days will earn 14 dollars : how much will 7 men earn in the same time ? 3. If 5 men can do a piece of work in 8 days : how many men must be employed to perform the whole in 1 day? 4. If 4 tuns of hay will keep 2 cattle over the winter...

Welch's Improved American Arithmetic, Adapted to the Currency of the United ...

1847 - 292 σελίδες
...men can build a house in 90 days, how long will it take 20 men to build it ? Ans. 54 days. Ex. 11. If 6 men can do a piece of work in 9 days, how long will it take 2 men to do it ? Ans. 27 days. Ex. 12. If f of a ton of coal cost $2,61, how...

The American Equater: Or, Arithmetic Simplified in which Equations are Used ...

Conley Plotts - 1848 - 278 σελίδες
...how long would the same quantity of provisions last 7 men ? 48. If 7 men can do a piece of work in 4 days, how many men would it take to do the same work in 2 days ? 49. A gentleman had a quantity of pavement to lay, which the contractor thought would take...

Arithmetic, Oral and Written, Practically Applied by Means of Suggestive ...

Thomas H. Palmer - 1854 - 356 σελίδες
...the weight of sugar, at 6 cents a pound, may be purchased for 4 dollars and 20 cents ? 64. If 30 men can do a piece of work in 8 days, how many men could do the same piece of work in 12 days ? 65. When 20 men can do a piece of work in 12 days, in...

Arithmetic, Oral and Written, Practically Applied by Means of Suggestive ...

Thomas H. Palmer - 1854 - 368 σελίδες
...20 men can do a piece of work in 12 days, in what time may 30 men do the same work ? 04. If 30 men can do a piece of work in 8 days, how many men could do the same piece of work in 12 days? PART II. WRITTEN ARITHMETIC. INTRODUCTION. ADDRESSED TO...

The Rudiments of Written Arithmetic: Containing Slate and Black-board ...

Horatio Nelson Robinson - 1866 - 200 σελίδες
...flour, how many bushels will be required to buy 3 barrels ? 5 barrels ? 7 barrels ? 9 barrels ? 13. If 4 men can do a piece of work in 8 days, how many days will it take one man to do it ? 14. If 7 men can build a wall in 3 days, how long will it take...

The Analysis of Intellectual Arithmetic: With Mental and Blackboard ...

Stoddard A. Felter - 1868 - 238 σελίδες
...126. If 4 men can do f of a piece of work in £ of a week, how long will it take 1 man to do it ? 127. If 6 men can do a piece of work in 9 days, how many men would it take to do it in 1 day? 128. If 6 men can cut 12 cords of wood in 12 days, how...

An Intellectual Arithmetic, Upon the Inductive Method: With an Introduction ...

James Stewart Eaton - 1868 - 190 σελίδες
...men can do a certain piece of work in 6 ddys, in how many days can 4 men do the same ? 13. If 9 men can do a piece of work in 8 days, how many men can do the same in 12 days? 14. If 4 men can do a piece of work in 6 days, in how many days can 3 men...

An Intermediate Arithmetic: Uniting Mental and Written Exercises in a ...

Emerson Elbridge White - 1873 - 260 σελίδες
...the lot? 8. If one man can build a wall in 36 days, how many men can build it in 4 days ? 9. If 6 men can do a piece of work in 8 days, how many men can do it in 12 days? 10. Two steamers start from the same port and sail in the same direction, one...




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