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Bøker Bok 110 av 37If 8 men can do a piece of work in 12 days, how long will it take...
" If 8 men can do a piece of work in 12 days, how long will it take... "
The Young Mathematician's Guide: Being a Plain and Easy Introduction to the ... - Side 92
av John Ward - 1771 - 480 sider
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The Young Mathematician's Guide: Being a Plain and Easie Introduction to the ...

John Ward (of Chester.) - 1724 - 456 sider
...is, in refpecl to the Firft, the lefler will the Fourth 'Serin be, in refpeft to the Second. Exam fie 2. If 8 Men can do a piece of Work in 12. Days 5 how many Days will 16 Men require to do the fame Work. Here it is plain the Fourth "term muft be...
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A Complete Treatise on Arithmetic, Rational and Practical: Wherein the ...

Paul Deighan - 1804
...the fourth term, or anfWer required. The method of proof is by reverfing the queflion. EXAMPLES. I. If 8 men can do a piece of work in 12 days, how many days can 1 6 men perform the fame in ? Ans. 6 days. men days mm If 8 : 12 :: 16 8 1 6)96 ( 6 days. — the...
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A New and Concise System of Arithmetick: Containing Vulgar, Decimal, and ...

Beriah Stevens - 1822 - 423 sider
...term. NB Contraction and cancelling have the same force here as in the rule of three direct. EXAMPLE. If 8 men can do a piece of work in 12 days, in how many days nil 1 6 men do the same 1 OPERATION. M. Days. Men. EXPLANATION. .In thi* As 8 :, 12...
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The introductory discourse and lectures delivered ... before the convention ...

American institute of instruction - 1831
...it into parts, and making a distinct question of each of the parts. Suppose the question were this : If 8 men can do a piece of work in 12 days, how long1 would it take 15 men to do ill It might be simplified by putting in smaller numbers, thus : If...
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The tutor's assistant: being a compendium of practical arithmetic, for the ...

Francis Walkingame - 1833
...together, and divide their product by the third : the quotient will be the answer, as before. , (1) If 8 men can do a piece of work in 12 days, in how many days can 16 men do the same?* (2) If 54 men can build a house in 90 days, how many men...
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A Complete System of Commercial Arithmetic, Its Application to the Principal ...

William Tate - 1837 - 337 sider
...number that will exactly divide them, but not the first and second, as in Direct Proportion. EXAMPLE. If 8 men can do a piece of work in 12 days, how many days will 16 men require to perform the same ? men days men If 8 require 12 what will 16 require? 16)96 Answer 6 days. * This supposes...
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The Common School Arithmetic ...: To which is Added a Dictionary of ...

P. E. Bates Botham - 1837 - 238 sider
...days ; how many men will it take to accomplish a piece 4 times as large in 4 days? Ans. 60-i men. 26. If 8 men can do a piece of work in 12 days : in how many days will 16 men do it? Ans. 6 days. 27. If 20 bushels of wheat are sufficient for 8...
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The tutor's assistant

Francis Walkingame - 1855 - 167 sider
...stating be greater or less than the first ; and proceed as in the foregoing examples. Examples. 1. If 8 men can do a piece of work in 12 days, how many days can 16 men perform the same in ? Here the answer is to be days : so that putting the 12 days for the...
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The Progressive Intellectual Arithmetic, on the Inductive Plan: Being a ...

Horatio Nelson Robinson - 1859
...26. At the rate of 16 miles in 4 hours, how many miles would a man travel in 12 hours ? 27. If 3 men can do a piece of work in 12 days, how many days will it take 9 men to do the same ? ANALYSIS. If 3 men can do the work in 12 days, 1 man can do it in 3...
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Walkingame's arithmetic [his Tutor's assistant] simplified and improved. [&c ...

Francis Walkingame - 1859
...as the first does to the third. — Abreviations may be adopas in Simple Proportion. EXERCISES. 1. If 8 men can do a piece of work in 12 days, in how many days can 16 men perform the same ? 8men ; 12days ; ; 16men OR, 8 men ; 2)12 days ; ; 16...
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