 A cistern has 4 pipes ; the first will fill it in 2 hours, the second will fill it in 3 hours, the third in 4 hours, and the fourth will empty it in 2 hours ; now, if the pipes are all open at the same time, how long •will it take to fill the cistern...  A Mental Arithmetic, Upon the Inductive Plan - Página 114por Benjamin Greenleaf - 1860 - 156 páginasVista completa - Acerca de este libro
 | Calvin Tracy - 1840 - 316 páginas
...of sufficient capacity to contain 230 gallons, in one hour, and by a pipe 35 gallons be drawn off in the same time, how long will it take to fill the cistern 1 Ans. 15 hours, 20 minutes. 49. If 150 Ib. of soap cost $15.60, what would 15 Ib. cost ? Ans. $1.56.... | |
 | W. F. Walker - 1841 - 246 páginas
...of sufficient capacity to contain 230 gallons, in one hour, and by a pipe 35 gallons be drawn off in the same time, how long will it take to fill the cistern ? Ans. 15hr. 20min. (59.) A vessel at sea discharges a cannon, the report of which reaches me in 1... | |
 | Benjamin Greenleaf - 1852 - 156 páginas
...part did the second man spend in a week ? How long would the 4 dollars last the first man alone ? 18. A cistern has 4 pipes. The first will fill it in 2...same time, how long will it take to fill the cistern ? 19. A boy had 20 cents to spend for apples and peaches ; for every apple he gave 2 cents, and for... | |
 | J L. Ellenberger - 1854 - 338 páginas
...through a tap, that empties it in 1£ hours. Suppose the cistern empty, and the two pipes and the tap act at the same time, how long will it take to fill the cistern. PART iV. DECIMAL FRACTIONS. 164. In the common system of numeration, it has been shown that a figure... | |
 | Benjamin Greenleaf - 1857 - 162 páginas
...part did the second man spend in a week ? How long would the 4 dollars last the first man alone ? 18. A cistern has 4 pipes. The first will fill it in 2...same time, how long will it take to fill the cistern ? 19. A boy had 20 cents to spend for apples and peaches ; for every apple he gave 2 cents, and for... | |
 | Benjamin Greenleaf - 1859 - 168 páginas
...in 3 hours ; if both pipes are open, how long will it take to fill the cistern? 9. A cistern has i pipes ; the first will fill it in 2 hours, the second...long will it take to fill the cistern ? 10. A and В together can build a wall in 16 days, but with the aid of С they can build it in 10 days ; how... | |
 | Benjamin Greenleaf - 1851 - 150 páginas
...would the 4 dollars last the first man alone ? 18. A cistern has 4 pipes. The first will fill it in '1 hours, the second will fill it in 3 hours, the third...same time, how long will it take to fill the cistern ? 19. A boy had 20 cents to spend for apples and peaches ; for every apple he gave 2 cents, and for... | |
 | Shelton Palmer Sanford - 1872 - 404 páginas
...cistern by a third pipe, which empties it in 1£ hours. If the cistern is empty, and the three pipes act at the same time, how long will it take to fill the cistern ? Ans. 6 hours. MENSURATION. ARTICLE 358. MENSURATION literally means the art of meo» wing. It teaches... | |
 | Benjamin Greenleaf - 1877 - 170 páginas
...to fill it ? 8. A cistern has 2 pipes ; the first will fill it in 2 hours, and the second will empty it in 3 hours ; if both pipes are open, how long will...cistern ? 10. A and B together can build a wall in 8 days, but with the aid of С they can build it in 5 days ; how long will it take С to build it alone... | |
 | Benjamin Greenleaf - 1877 - 160 páginas
...how long will it take to fill the cistern ? • 9. A cistern has 4 pipes ; the first will fill it iii 2 hours, the second will fill it in 3 hours, the third...cistern ? 10. A and B together can build a wall in 8 days, but with the aid of С they can build it in 5 days ; how long will it take С to build it alone... | |
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