 | Benjamin Greenleaf - 1849 - 336 σελίδες
...gallons ? Of 3 gallons ? Of 4 gallons ? Of 5 gallons ? Of 6 gallons ? Of 9 gallons ? 27. If 12 men can do a piece of work in 16 days, how long will it take 1 man to do it ? 28. If a steam-engine runs 28 miles in 1 hour, how far will it run in 4 hours ? In... | |
 | Benjamin Greenleaf - 1851 - 332 σελίδες
...gallons ? Of 3 gallons ? Of 4 gallons ? Of 5 gallons ? Of 6 gallons ? Of 9 gallons ? 27. If 12 men can do a piece of work in 16 days, how long will it take 1 man to do it? 28. If a steam-engine runs 28 miles in 1 hour, how far will it run in 4 hours ? In... | |
 | Benjamin Greenleaf - 1860 - 164 σελίδες
...pounds of meat in one day, how many men will consume 15 J pounds in the same time 1 36. If 4 men can do a piece of work in 16| days, how long will it take 3 men to do the same ? 37. How many bushels of potatoes, at -fa of a dollar a peck, must be given for... | |
 | Benjamin Greenleaf - 1872 - 192 σελίδες
...Les. XXXIII.) 31. If 3 pounds of butter cost | of a dollar, what cost 10 pounds ? 32. If 4 men can do a piece of work in 16^ days, how long will it take 3 men to do the same ? 33. If | of a rod of land is worth £ of a dollar, what is a rod worth ? ANALYSIS.... | |
 | Benjamin Greenleaf - 1879 - 190 σελίδες
...Les. XXXIII.) 31. If 3 pounds of butter cost | of a dollar, what cost 10 pounds ? 32. If 4 men can do a piece of work in 16^ days, how long will it take 3 men to do the same ? 33. If | of a rod of land is worth ^- of a dollar, what is a rod worth ? ANALYSIS.... | |
 | Christian Brothers - 1888 - 484 σελίδες
...; from which we obtain the number of yards that can be bought for $36. 3. If 5 men can dig a ditch in 16 days, how long will it take 8 men to do the same work ? STATEMENT. men da. 5 = о men men 8:5:: 16 x da. 16 da. x OPERATION. = 5x16 x = —... | |
 | John Fair Stoddard - 1889 - 202 σελίδες
...He removed 144 cubic yd. of earth ; what was the length of the cellar ? 56. If 8 men or 12 boys can do a piece of work in 16 days, how long will it take 12 men and 8 boys to do the same ? 57. A and B together own 68 acres of land ; | of A's equals f of... | |
 | James Marcus Bandy - 1890 - 124 σελίδες
...can construct an engine in 15 months; how long will it take 6 men to construct it? 17. If 9 men can do a piece of work in 16 days; how long will it take 12 men to do it? 18. If 9 men can do a piece of work in 16 days; how many men will do it in 12 days?... | |
 | George Albert Wentworth - 1895 - 222 σελίδες
...will it take 6 pipes of the same size to empty it ? how long will it take 12 pipes ? 13. If 2 men can do a piece of work in 16 days, how long will it take 4 men to do twice as much ? Lesson 20. 1. A bag of corn meal weighs 100 pounds. How many bags will... | |
 | George Washington Hull - 1896 - 152 σελίδες
...cents, what will 8 quarts cost? 11. At 18 cents a dozen, what will 8 dozen eggs cost? 12. If 10 men can do a piece of work in 16 days, how long will it take 1 man to do it? 13. A farmer bought 9 horses, at 80 dollars a head ; how much did they cost him? 14.... | |
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... 291. MAGNITUDES WHICH ARE INVERSELY PROPORTIONAL TO OTHER MAGNITUDES OR TO THE SQUARES OF OTHER MAGNITUDES. EXAMPLE. If 5 men do a piece of work in 16 days, how long will it take 8 men to do a similar piece of work ? OPERATION AND EXPLANATION. It... 
