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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 80
των Warren Colburn - 1829 - 172 σελίδες
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A Practical Arithmetic

George Albert Wentworth - 1897 - 480 σελίδες
...row. How many squares has it in all ? 23. What will 11 qt. of berries cost at 12 cents a quart ? 24. If 6 men can do a piece of work in 9 days, in how many days can one man do it ? 25. If 7 men can do a piece of work in 8 days, in how many days can one man do...

Graded Lessons in Arithmetic: Book IV

Wilbur Fisk Nichols - 1897 - 136 σελίδες
...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 Practical Arithmetic

George Albert Wentworth - 1897 - 396 σελίδες
...How many squares has it in all ? 23. What will 11 qt. of berries cost at 12 cents a quart ? 24. It' 6 men can do a piece of work in 9 days, in how many days can one man do it ? 25. If 7 men can do a piece of work in 8 days, in how many days can one man do...

A Mental Arithmetic

William James Milne - 1897 - 186 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...

A Mental Arithmetic

William James Milne - 1897 - 194 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...

Graded Lessons in Arithmetic: Book V

Wilbur Fisk Nichols - 1898 - 148 σελίδες
...How many had he '! 3. Л boy gave away 2i apples, which was 25c/c of all he had. How many had he ? 4. If 6 men can do a piece of work in 9 days, in how many days can 2 men do it? 5. If 4 men can do a piece of work in 8 days, how many men will it take to do the...

Problems in Arithmetic, Βιβλίο 1

George E. Gay - 1898 - 92 σελίδες
...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: Third Grade

George Edward Atwood - 1901 - 170 σελίδες
...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 i. 684x38. 2. $.45x75. 3. 5,000,072 ч- 8. 4. 658 x 65....

Complete Graded Arithmetic, Τόμος 2

George Edward Atwood - 1901 - 168 σελίδες
...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....

The Natural Arithmetic: Book 1-, Τόμος 2

Isaac Oscar Winslow - 1901 - 298 σελίδες
...797.86 . 73.50 46.54 746.35 40.23 891.43 80.61 54.70 496.68 660.75 727.45 Miscellaneous Problems 1. If 6 men can do a piece of work in 9 days, how long will it take 2 men to do it ? 2. If 5 men can do a piece of work in 6 days, how many men can...




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