 | Luther Ainsworth - 1837 - 306 σελίδες
...how many feet is the steeple in height 1 Ans. 194 feet, 5f in. RULE OF THREE INVERSE. 1. If 15 men can do a piece of work in 30 days, how long will it take 50 men to perform the same ? Ans. 9 days. 2. If 50 men must be employed 9 days, in doing a job of work,... | |
 | John Fair Stoddard - 1852 - 320 σελίδες
...$125 + $25 = $150 ; therefore, 4x$150 = $600, the yearly income of each. 18. A and B can, together, d6 a piece of work in 30 days ; how long will it take each separately to do the work, providing A does twice as much as B ? SOLUTION They, together, do the... | |
 | Richard Nelson - 1867 - 304 σελίδες
...trading horses put in each $1200 and $800, and gaiued $12f>0; what was each man's share? 15. If 20 men do a piece of work in 30 days, how long will it take 1 man to do it? how long 15? 16. In 3683 oranges how many dozen? 17. If $3678.21 be divided between... | |
 | Richard Nelson - 1881 - 312 σελίδες
...trading horses put in each $1200 and $800, and gained $1250; what was each man's share? 15. If 20 men do a piece of work in 30 days, how long will it take 1 man to do it? how long 15? 16. In 3683 oranges how many dozen? 17. If $3678.21 be divided between... | |
 | George Albert Wentworth - 1895 - 222 σελίδες
...hours ? 3. If it takes 2 men 3 days to do a piece of work, how long will it take 1 man ? 3 men ? 4. If one man can do a piece of work in 30 days, how long will it take 3 men? 6 men? 5. If a man can do a piece of work in 48 hours, how many days will it take him, working... | |
 | John Williston Cook, Nebraska C. Cropsey - 1895 - 324 σελίδες
...many hours in 2| days of 24 hours each ? How many days in the months of September and November ? 2 men do a piece of work in 30 days ; how long will it take one man to do the work ? Will it take 1 man a longer or a shorter time than 2 men ? Make problems for... | |
 | John Williston Cook, Nebraska Cropsey - 1899 - 328 σελίδες
...many hours in 2| days of 24 hours each ? How many days in the months of September and November ? 2 men do a piece of work in 30 days ; how long will it take one man to do the work ? Will it take 1 man a longer or a shorter time than 2 men ? Make problems for... | |
 | Jacob Henry Minick, Clement Carrington Gaines - 1904 - 412 σελίδες
...12 yards cost ? 3. How much will 21 pounds of sugar cost, if 6 pounds cost 39 cents ? 4. If 16 men can do a piece of work in 30 days, how long will it take 24 men to do it ? 5. If 27 bushels of wheat cost $18.90, how much will 100 bushels cost? 6. If $200... | |
 | Eugene Henry Barker - 1920 - 264 σελίδες
...a post 4 feet in height casts a shadow 1^ feet long, what is the height of. the tree ? 3. If 25 men can do a piece of work in 30 days, how long will it take 15 men to do it, working at the same rate ? 4. Twenty men in 16 days can do a piece of work. How many... | |
| |
November ? 2 men do a piece of work in 30 days ; how long will it take... 