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If 4 men can do a piece of work in 6 days, in how many days can 3 men do twice as much work ? 15.
The Youth's Assistant in Theoretic and Practical Arithmetic, : Designed for ... - Σελίδα 129
των Zadock Thompson - 1828 - 225 σελίδες
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## School Documents [of The] Boston Public Schools

1892
...the interest of \$1 is 6 cents a year, what is the interest of three dollars for two years? If 8 men can do a piece of work in 6 days, in how many days can 4 men do it ? A farmer sold two tons of hay at \$20 a ton, and for pay received 8 yards of cloth at...

## Dubbs' Complete Mental Arithmetic: A Volume of Carefully Graded Exercises ...

Eugene L. Dubbs - 1893 - 220 σελίδες
...? 62. I allowed an agent ^\ of all collections. If he received \$60, how much did I get ? 63. 12 men can do a piece of work in 6^ days. In how many days can 15 men do a piece 10 times as large? 64. A merchant bought 2f dozen neckties for \$12i. How much was...

## Arithmetic by Grades for Inductive Teaching, Drilling and Testing, Βιβλίο 5

John Tilden Prince - 1894
...are sold for \$160. What was paid for 25f acres at the same rate ? 9. A man by working 8£ hours a day can do a piece of work in 6 days. In how many days can he do it if he works 10 hours a day ? 10. At \$4.5 a barrel, how many barrels can be bought for \$90...

## Intermediate Arithmetic: Including Exercises in Solving Simple Algebraic ...

John Henry Walsh - 1893 - 458 σελίδες
...If the interest of \$1 is 6^ a year, what is the interest of three dollars for two years? 2. If 8 men can do a piece of work in 6 days, in how many days can 4 men do it? -3. If 4 boxes of raisins cost \$7, what will 12 boxes cost? 4. A man having 75 dollars...

## Designed for the use of classes in the second, third, and fourth years of ...

Alfred Kirk, A. R. Sabin - 1894
...cost of 9 tons of hay ? 2. What is the cost of 7 barrels of flour, at | of \$ 42 a barrel ? 3. If 8 men can do a piece of work in 6 days, in how many days can one man do it ? 4. If 2 barrels of flour last 7 persons 3 months, how long do 4 barrels last one person...

## The Werner Mental Arithmetic

Albert Newton Raub - 1894 - 158 σελίδες
...men can do a piece of work in 6 days, how long will it take 12 men to do the same work? ANALYSIS. — If 4 men can do a piece of work in 6 days, it will take 1 man 4 times 6 days. or 24 days, to do the work, and 12 men will do it in -fj of 24 days,...

## Bradbury's Practical Arithmetic: Combining Oral and Written Exercises

William Frothingham Bradbury - 1895 - 377 σελίδες
...same 1 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 тaлy days can 3 men do twice as much, work ? 15. A farmer sold 2 tons of hay at \$ 20 a ton, and for...

## Grammar School Arithmetic for Inductive Teaching, Drilling and Testing ...

John Tilden Prince - 1895 - 282 σελίδες
...are sold for \$160. What was paid for 25f acres at the same rate ? 9. A man by working 8£ hours a day can do a piece of work in 6 days. In how many days can he do it if he works 10 hours a day ? 10. At \$4.5 a barrel, how many barrels can be bought for \$90...

## Sight Arithmetic

William Frothingham Bradbury - 1895 - 166 σελίδες
...? 2. If the interest of \$ 1 is 6 cents a year, what is the interest of \$3 for 2 years ? 3. If 8 men can do a piece of work in 6 days, in how many days can 4 men do it ? 4. A farmer sold 4 tons of hay at \$12 a ton, and for pay received 10 yards of cloth at...

## The Senior Arithmetic for Grammar Schools

Charles Edward White - 1897 - 291 σελίδες
...How many cords of wood at \$3 a cord will pay for 30 Ib. of sugar at 5 cents a pound ? 43. If 8 men can do a piece of work in 6 days, in how many .days can 12 men do it ? / 44. How many pounds of sugar can be bought for \$7 if 21 Ib. cost \$1.05 ? 45. How many...