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" If 3(J men perform a piece of work in 20 days ; how many men will accomplish another piece of work 4 times as large in a fifth part of the time ? S0 : 20 : : 1 4 : : 4 Ms. "
The Arithmetical Manual - Σελίδα 50
των Samuel Read Hall - 1832 - 288 σελίδες
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The Tutor's Assistant Modernised: Or, A Regular System of Practical ...

Thomas Peacock - 1791 - 302 σελίδες
...Anf. ol. is. loi -id. 41. If 15 men can perform a piece of workNin 22 days ; how many men will finiih another piece of work 4 times as large in a fifth part of the time ? Anf. 300.' 42. What fum can I fpend daily, out of an income of 1500!. per annum, to lay up 400 guineas...

Mathematics: Compiled from the Best Authors, and Intended to be the ..., Τόμος 1

Samuel Webber - 1808 - 466 σελίδες
...20 yards of say, that is 3qrs. wide ? Ans. 12yds, 40. If 30 men can perform a piece of work in 1 1 days, how many men will accomplish another piece of work, 4 times as big, in a filth part of the time ? Ans. 600. 41. A wall, that is to be built to the height of 27 feet,...

Adams's New Arithmetic: Arithmetic, in which the Principles of Operating by ...

Daniel Adams - 1810 - 190 σελίδες
...it to balance the favor ? Ans. 2 months 6 -f- days, 34. If 30 men can perform a piece of work in 1 1 days, how many men will accomplish another piece of work, 4 times as blg, in a fifth part of the time 7 | , -, -~ Aas. 600 men. 36. If Tfflb. of sugar cost T5 of a shilling,...

Daboll's Schoolmaster's Assistant: Improved and Enlarged : Being a Plain and ...

Nathan Daboll - 1813 - 244 σελίδες
...family of H persons 5 months, how much will be sufficient for 4 perlons IM months? Ans. 24 bushels. 8. If 30 men perform a piece of work in 20 days ; how...work 4 times as large in a fifth part of the time ? 60 : 20 : : I 4 : : 4 Ans. 600. 9. If the carriage of 5 cwt. 3 qrs. 150 miles, cost 2-f dollars 58...

Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain ...

Nathan Daboll - 1818 - 246 σελίδες
...persons 5 months, how much will be sufficient for 4 persons 12 months ? Ans. 24 bushels. 8. If 3(J men perform a piece of work in 20 days ; how many...work 4 times as large in a fifth part of the time ? S0 : 20 : : 1 4 : : 4 Ms. 600. 9. If the carriage of 5 cwt. 3 qrs. 150 miles, cost 24 dpllars 58...

Logarithmick Arithmetick: Containing a New and Correct Table of Logarithms ...

1818 - 264 σελίδες
...150 at the same rate ? Ans. g 50 00 22. If 30 men perform a piece of work in 1 1 dap, how manymen can accomplish another piece of work 4 times as large in, a fifth part of the time ? Ans. 600 23. A wall that is to be built to the height of 27 feet, was raised 9 feet by 12 men in 6 days, how...

Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain ...

Nathan Daboll - 1818 - 246 σελίδες
...family of 8 persons 5 months, how much will be sufficient for 4 persons 12 months ? Ans. 24 bushels. 8. If .30 men perform a piece of work in 20 days ; how y men will accomplish another piece of work 4 times arge'in a. fifth part of the time ? 30 : 20 : :...

The Scholar's Guide to Arithmetic: Being a Collection of the Most Useful ...

Phinehas Merrill - 1819 - 116 σελίδες
...men can perform a piece of work in 1 1 days, how many men will accomplish another piece of work four times as large, in a fifth part of the time ? Ans- 600 men. 10. What musí be the length to contain an acre of land, when the breadth is IS rods ? Ans- 10...

Daboll's Schoolmaster's Assistant: Improved and Enlarged; Being a Plain ...

Nathan Daboll - 1820 - 254 σελίδες
...months, how much will be sufficient for 4 persons 12 months ? • , • Jlns. 24 bushels. 8. If SO men perform a piece of work in 20 days ; how many...accomplish another piece of work 4 times as large in a filth part of the time ? SO : 20 : : 1 4 : : 4 ,3ns. 600, 9. If the carriage of 5 cwt. 3 qrs. 150 miles,...

An Elementary Treatise on Arithmetic

Silvestre François Lacroix - 1821 - 160 σελίδες
...line 20 yards of say, that is 3qrs. wide ? . Ans. 12yds. If 30 men can perform a piece of work in 11 days, how many men will accomplish another piece of work, 4 times as big, in a fifth part of the time ? Ans. 600. A wall that is to be built to the height of 27 feet, was...




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