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 Βιβλία Βιβλία
If 9 men can do a piece of work in 8 days, how many men can do the same in 12 days?
Colburn's First Lessons: Intellectual Arithmetic, Upon the Inductive Method ... - Σελίδα 76
των Warren Colburn - 1849
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## Bradbury's Practical Arithmetic: Combining Oral and Written Exercises

William Frothingham Bradbury - 1895 - 377 σελίδες
...men can do a certain piece of work in 6 days, in how many days can 4 men do the 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...

## Mental Arithmetic

Edward Weidenhamer - 1896 - 173 σελίδες
...have worked at it 3 days, how many men will be required to finish the work in 1 day? 181. Five men can do a piece of work in 8 days. How many men will be required to finish the work in i of a day, if 6 men have worked at it 6 days? 102 COMMON FRACTIONS...

## Graded Lessons in Arithmetic: Book IV

Wilbur Fisk Nichols - 1897
...and 6 ft. high ? 2. A boy gave away 4 cents, which was i of all he had. How many cents had he ? 3. If 4 men can do a piece of work in 8 days, how many men can do it in one day ? 4. A girl had 27 apples. She kept 7, and divided the rest equally among 5 of...

## A Mental Arithmetic

William James Milne - 1897 - 176 σελίδες
...travels 9 miles per hour. If B travels 1| times as fast as A, in how many hours will B overtake A ? 19. If 4 men can do a piece of work in 8| days, in how many days can 1 man do the same work ? In how many days can 13 men do it ? 20. After paying...

## A Mental Arithmetic

William James Milne - 1897 - 176 σελίδες
...does each cost per pound if 3 pounds of pork and 4 pounds of beef together cost 99 cents? 12. If 3 men can do a piece of work in 8 days, how many men can do it in 6 days? 13. One pipe can fill a cistern in 4 hours, and a second pipe can fill it in 6...

## Problems in Arithmetic, Βιβλίο 1

George E. Gay - 1898
...receive ? Lesson 27. 1. In 1 bushel there are 32 quarts. How many quarts are there in 8 bushels ? 2. If 4 men can do a piece of work in 8 days, how long will it take 1 man to do it ? 3. If 4 men can do a piece of work in 8 days, how many men will...

## Complete Graded Arithmetic, Τόμος 2

George Edward Atwood - 1901
...square foot of zinc is worth 25 cents, how much is a square yard worth at the same price ? 16. If 3 men can do a piece of work in 8 days, how many men can do it in 6 days ? In 2 days ? LESSON 48 l. 684 x 38. 2. \$ .45 x 75. 3. 5,000,072 -5- 8. 4. 658x65....