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" A cistern for water has two cocks to supply it, by the first it may be filled in 45 minutes, and by the second in 55 minutes; it has likewise a discharging cock, by which it may, when full, be emptied... "
The American Tutor's Assistant Revised, Or, A Compendious System of ... - Seite 171
von Zachariah Jess - 1810 - 210 Seiten
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A New and Complete System of Arithmetick: Composed for the Use of the ...

Nicolas Pike - 1832 - 528 Seiten
...for water, has 2 cocks to supply it; by the first, it may be filled in 45 minutes, and by the second, in 55 minutes ; it has likewise a discharging cock,...comes in, in what time will the cistern be filled ? Mm. Cist. Min. Cist. Cist. Hour. Cist. h. in. s. 45 : 1 :: 60 : 1-3333 As -4-242 : 1 :: 1 : 2 21...
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The Teachers' Assistant: Or a System of Practical Arithmetic

Stephen Pike - 1835 - 198 Seiten
...second in 55 minutes; it has likewise a discharging it. Yiv whir.h it mav. -when full. be p.mntied in 30 minutes: now if these three cocks be all left open wh the water comes in, in what time will the cistern filled? Ans. 2 hours, 21min. 25fs 53. The account...
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Porter's New System of Mathematics: With the Addition of a Complete Ready ...

James H. Porter - 1841 - 192 Seiten
...two cocks to supply it ; by the first alone it may be filled in 40 minutes, and by the second in 50 minutes ; it has likewise a discharging cock, by which it may, when full, be emptied in 25 minutes. Now, if these three cocks are left open when the water comes in, in what time will the...
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The Teachers' Assistant, Or, A System of Practical Arithmetic: Wherein the ...

1845 - 198 Seiten
...for water has two cocks to supply it, by the first it may be filled in 45 minutes, and by the second in 55 minutes; it has likewise a discharging cock,...comes in, in what time will the cistern be filled? Ans. 2 hours, 21min. 25{sec. 53. The account of a certain school is as follows, viz •fg of the boys...
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The Teachers' Assistant, Or, A System of Practical Arithmetic: Wherein the ...

1845 - 198 Seiten
...for water has two cocks to supoly it, by the first it may be filled in 45 minutes, and by the second in 55 minutes; it has likewise a discharging cock,...it may, when full, be emptied in 30 minutes: now if tíiese three cocks be all left open when the water comes in, in what time will the cistern be filled?...
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The Speedy Calculator: Being a System of Arithmetic

Benjamin Naylor - 1850 - 324 Seiten
...for water has two cocks to supply it ; by the first it may be filled in 45 minutes, and by the second in 55 minutes ; it has likewise a discharging cock,...when full, be emptied in 30 minutes ; now if these apertures be all left open when the water comes in, in what time will the cistern be filled ? Ans....
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Naylor's System of Teaching Geography: Adapted to Pelton's Outline Maps ...

Benjamin Naylor - 1851 - 144 Seiten
...for water has two cccks to supply it, by the first it may b« filled in 45 minutes, and by the second in 55 minutes ; it has likewise a discharging cock,...comes in, in what time will the cistern be filled? Answered in 1£ minutes. It must be remembered too, that neither the teacher nor pupil knew that they...
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The Teacher's Assistant: Or, a System of Practical Arithmetic: Wherein the ...

1852 - 192 Seiten
...and by the second in 55 minutes; it has likewise a discharging sock, by which it may, when full, Ъe emptied in 30 minutes: now if these three cocks be...comes in, in what time will the cistern be filled? Ans. 2 hours, 21min. 25{sec. 53. The account of a certain school is as follows, viz. Èof the boys...
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The New Federal Calculator, Or Scholar's Assistant

Thomas Tucker Smiley - 1854
...has two cocks to supply it with water; by the first it may be filled in 45 minutes, and by the second in 55 minutes; it has likewise a discharging cock,...which it may, when full, be emptied in 30 minutes: if these 3 cocks be left open, in what time will the cistern be filled ? Ans. 2h. 21m. 25 ?*ec. baize...
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The New Federal Calculator, Or Scholar's Assistant: Containing the Most ...

Thomas Tucker Smiley - 1868
...two cocks to supply it with water ; by the first it may be filled in 45 minutes, and by the second in 55 minutes; it has likewise a discharging cock,...which it may, when full, be emptied in 30 minutes : tí these 3 cocks be left open, in what time will the cistern be filled? Am. 4k. 21m. 25^*ec. DOUBLE...
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