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If 8 men can do a piece of work in 7 days, how many days will it take one man to do it ? 9.
Arithmetic Upon the Inductive Method of Instruction: Being a Sequel to ... - Σελίδα 21
των Warren Colburn - 1826 - 245 σελίδες
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## Elements of Arithmetic

Etienne Bézout - 1824 - 219 σελίδες
...in an hour, how far would he travel in 8 days, when the days are 9 hours long ? Ans 504 miles. 47. If 10 men can do a piece of work in 7 days, how many days will it take one man to do it ? Ans. 70 days. NOTE. Multiplication by 10, 100, 1000, &c. is performed by annexing...

## Arithmetic: Being a Sequel to First Lessons in Arithmetic

Warren Colburn - 1824 - 267 σελίδες
...dollars apiece, how many dollars will they all receive ? 4. If 30 men can do a piece of work in 43 days, how many days will it take 1 man to do it ? 5. If 70 men can do a piece of work in 83 days, how many men will it take to do it in one day ? 6. If...

## Arithmetic Upon the Inductive Method of Instruction ...: Stereotyped at the ...

Warren Colburn - 1829
...800 1,000 38. 1,643 1,000 39. 725 10,000 40. 76,438 10,000 4. If 30 men can do a piece of work in 43 days, how many days will it take 1 man to do it ? 5. If 70 men can do a piece of work in 83 days, how many men will it take to do it in one day ? 6. If...

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

P. E. Bates Botham - 1836 - 98 σελίδες
...dollars, paid 29 : how many did he then owe ? 105. What cost 75 acres of land, at 2 dollars per acre? 106. If 10 men can do a piece of work in 7 days : how many days will it take 1 man to do it ? о 107. At 8 dollars a cord : how many cords of wood may be bought for 56 dollars ? 108. A man owing...

## The Common School Arithmetic ...: To which is Added a Dictionary of ...

P. E. Bates Botham - 1837 - 238 σελίδες
...16 days ; how long v.ill k • take 1 man ? Ans. 48 days. 2. If 60 men can do a picce of work in 79 days ; how many days will it take 1 man to do it? AIM. 4740 days. 100 ANALYSIS. 3. If 27 men can do a piece of work in 300 days , how many men will it...

## The Progressive Intellectual Arithmetic, on the Inductive Plan: Being a ...

Horatio Nelson Robinson - 1859
...dollars, in one month, how many dollars can he earn in 8 months ? in 9 months ? in 7 months ? 8. If 8 men can do a piece of work in 7 days, how many days will it take one man to do it ? 9. If two barrels of flour last 8 persons 3 months, how long will they last one...

## The Progressive Intellectual Arithmetic on the Inductive Plan: Being a ...

Horatio Nelson Robinson - 1860 - 176 σελίδες
...dollars, in one month, how many dollars can he earn in 8 months ? in 9 months ? in 7 months ? 8. If 8 men can do a piece of work in 7 days, how many days will it take one man to do it ? 9. If two barrels of flour last 8 persons 3 months, how long will they last one...

## Inductive Lessons in Intellectual Arithmetic: Designed to Illustrate the ...

Dana Pond Colburn - 1860
...1 man to do a piece of work which 3 men can do in 9 days ? 16. If 8 men can do a piece of work in 2 days, how many days will it take 1 man to do it ? 17. If it takes 3 men to do a piece of work in 7 days, how many men will it take to do it in 1 day...

## The Progressive Intellectual Arithmetic, on the Inductive Plan: Being a ...

Horatio Nelson Robinson - 1863 - 176 σελίδες
...dollars, in one month, Iiow many dollars can he earn in 8 months ? in 9 months ? in 7 months ? 8. If 8 men can do a piece of work in 7 days, how many days will it take one man to do it ? 9. If two barrels of flour last 8 persons 3 months, how long will they last one...

## An Intermediate Arithmetic ...: (Robinson's Shorter Course).

Daniel W. Fish - 1874
...pounds of sugar cost ? 10 pounds ? 11 pounds ? 12 pounds ? 6. If 5 men can do a piece of work in 9 days, how many days will it take 1 man to do it ? ANALYSIS. — It will take 1 man 5 times as many days as it will 5 men ; 5 times 9 days are 45 days....