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" If 8 men can build a wall 20 feet long, 6 feet high and 4 feet thick, in 12 days ; in what time will 24 men build one 200 feet long; 8 feet high, and 6 feet thick ? 8 : 12 : : 20x6x4 24 :. i 200x8x6 80 days, «1ns. "
Porter's New System of Mathematics: With the Addition of a Complete Ready ... - Page 21
by James H. Porter, Reuben Porter (Jr.) - 1843 - 72 pages
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The Scholar's Arithmetic; Or, Federal Accountant ...: The Whole in a Form ...

Daniel Adams - Arithmetic - 1807 - 248 pages
...found ? 5. WHEN the proportion is Inverse, how is the answer to be found ? JEXERCISES. 1. IF 6 men build a wall 20 feet long, 6 feet high, and 4 feet wide in 16 days, in what time will 24 men build one 200 feet long, 8 feet high and 6 feet thick ? /)...
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A New and Complete System of Arithmetick: Composed for the Use of the ...

Nicolas Pike - Algebra - 1808 - 470 pages
...be built in 5 months. 1 demand the number of men to be employed about it ? Ans. 48 men. 8. If 6 men build a wall 20 feet long, 6 feet high and 4 feet thick, in 16 days, in what time will 24 men build one 200 feet long, 8 feet high, and 6 feet thick i m. da. ft....
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Daboll's Schoolmaster's Assistant: Improved and Enlarged : Being a Plain and ...

Nathan Daboll - Arithmetic - 1813 - 244 pages
...paid for the carriage of * ewt. 2 qrs. 25 Ib. 04 miles, at the same rate ? Ans. gM,08c<i. 6m. + 10. If 8 men can build a wall 20 feet long, 6 feet high and 4 feet thick, in 12 days ; in what time' will 24 mer build one 200 feet long, 8 feet high, and 6 feet thick ? 8 : 12 :: 20x6x4 24 : 200 x 8...
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Daboll's Schoolmaster's Assistant, Improved and Enlarged: Being a Plain ...

Nathan Daboll - Arithmetic - 1817 - 252 pages
...paid for the carriage of 7 cwt. 2 qrs. .25 Ib. 64 miles at the same rate ? Aits. gl4, OScts. 6m.+ 10. If 8 men can build a wall 20 feet long, 6 feet highand 4 feet thick, in. 12 days;. in what time will 24 men . build one 200 feet long, 8 feet- high,...
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Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain ...

Nathan Daboll - Arithmetic - 1818 - 246 pages
...paid for the carriage of 7 cwt. 2 qrs. 25 Ib. 64 miles at the same rate ? i Jlns. g14, O&cts. 6m.+ 10. If 8 men can build a wall 20 feet long, 6 feet high and 4 feet thick, in 12 days ; in what time will 24 men build one 200 leet long, 8 feet high, and 6 feet thick ? 8 : 12 : : 2i)xox4 24 : 200x8x6...
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Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain ...

Nathan Daboll - Arithmetic - 1824 - 264 pages
...paid for the carriage of 7 cwt. 2 qrs. 25 Ib. 64 miles at the same rate ? .3*«. 814, 0Scts. 6m.+ 10. If 8 men can build a wall 20 feet long, 6 feet high and 4 fee; thick, in 12 days ; in what time will 24 men build one 200 feet long, 3 feet high, and 6 feet...
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Elements of Arithmetic

Etienne Bézout - Mathematics - 1824 - 238 pages
...miles cost 812,80, what must be paid for the carriage of 4cwt. 32 miles ? Ans. gl,60cts. 10. If 6 men build a wall 20 feet long, 6 feet high, and 4 feet thick, in 1 6 days ; in what time will 24 men build one 200 feet long, 8 feet high and 6 feet thick ? Ans. 80...
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Daboll's Schoolmaster's Assistant, Improved and Enlarged

Nathan Daboll - Arithmetic - 1825 - 248 pages
...the carriage of 7 cwt. 2 qrs. 25 Ib. 64-miles at the same rate ? Ans. g 14, 0S'ís. 6;п.+ 10. IfS men can build a wall 20 feet long. 6 feet high and 4 feet thick, in 12 days ; in what time will 2-I men bujld ene 200 /cet long, Й feet high, and 6 feet thick ? 8 : 12 : : 20x6x4 24 : 200x8x0...
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Daboll's Schoolmaster's Assistant

Nathan Daboll - Arithmetic - 1828 - 262 pages
...Ib. 64 miles at the same rate ? .dns. g 14, 03cfs. 6m. + 10. If 8 men can build a wall 20 feetlori"t, 6 feet high and 4 feet thick, in 12 days ; in what time will 24 men builtl one 200 leet long, 8 feet high, and 6 feet thick ? 8 : 12 ! : 20x6x4 24: 200x8x6...
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The Youth's Assistant in Theoretic and Practical Arithmetic, : Designed for ...

Zadock Thompson - Arithmetic - 1828 - 238 pages
...candles. NOTE.—The exchange of one commodity for another, is called .Barter. s 9. If 6 men huild a wall 20 feet long, 6 feet high, and 4 feet thick, in 32 days ; in what time will 12 men huild a wall 100 feet long, 4 feet high, and 3 feet thick ? Ans....
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