 | Isaac Dalby - 1807 - 476 σελίδες
...the ratio of the first term to the third is equal to that of the fourth to the second. For example : If 4 men can do a piece of work in 6 days, in what lime would 8 men do the same ? Taking the proportion direct, the answer comes out 12 day* j... | |
 | Zadock Thompson - 1828 - 238 σελίδες
...4, the first extreme, the quotient, 18, is evidently the other extreme, or the value of z. 196. 3. If 4 men can do a piece of work in 6 days, in how many days can 8 men do it? By analyzing the example, we find that 4 men 6 days=l man 24 days,... | |
 | Zadock Thompson - 1832 - 182 σελίδες
...days=il man 24 days, and 1 man 24 days=8 men 3 days. 8 then is the answer. Moreover it is obvious, that if 4 men can do a piece of work in 6 days, twice the number of men will do it in half the time, or 3 days ; and generally the greater the number... | |
 | James Stewart Eaton - 1868 - 190 σελίδες
...at 12 o'clock, what is the length of the shadow cast, at the same time, by a pole 18 feet long? 24. If 4 men can do a piece of work in 6 days, in how many days can 3 men do the same ? 25. If 5 men can do a piece of work in 3 days, in how many... | |
 | C. Taylor - 1874 - 170 σελίδες
...is 16 Ibs., what measure is there in five hundred and sixty Ibs. ? 28. — Eighteen men can perform a piece of work in 6 days ; how many days will it take eighty-one men to do it? 29. — At the rate of ¿97 10s. for 48 qrs. 6 bush. of barley, how much can... | |
 | Henry Bartlett Maglathlin - 1875 - 216 σελίδες
...$44? What is Analysis? 10. When $8 will buy 40 rakes, how many can be bought for $11? 11. If 12 men can do a piece of work in 6 days, how many days will it take 9 men to do the same? SOLUTION. — If 12 men can do the work in 6 days, it will take 1 man 12 times... | |
 | Henry Bartlett Maglathlin - 1876 - 230 σελίδες
...$44 ? What is Analysis? 10. When $8 will buy 40 rakes, how many can be bought for $11? 11. If 12 men can do a piece of work in 6 days, how many days will it take 9 men to do the same ? SOLUTION. — If 12 men can do the work in 6 days, it will take 1 man 12 times... | |
 | James Stewart Eaton - 1877 - 182 σελίδες
...same ? 13. If 9 men can do a piece of work in 8 days, how many men can do the same in 12 days? 14. If 4 men can do a piece of work in 6 days, in how many days can 3 men do twice as much work? 15. A farmer sold 2 tons of hay at $20 a ton, and... | |
 | Joseph Ray - 1877 - 150 σελίδες
...which are 6 days. 19. If 3 men can do a piece of work in 4 days, in how many days can 1 man do it? 20. If 4 men can do a piece of work in 6 days, in how many days can 1 man do it ? 21. If a quantity of bread serve 8 men 4 days, how many days will... | |
 | James Bates Thomson - 1878 - 180 σελίδες
...the rate of $35 for 7 weeks ? 87. If 7 pounds of flour cost 63 cents, what will 31 pounds cost ? 88. If 4 men can do a piece of work in 6 days, how long will it take 8 men to do the same work ? SUGGESTION. — 8 men are twice as many as 4 men ; therefore.... | |
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If 12 men can do a piece of work in 6 days, how many days will it take 9 men to do the same ? SOLUTION. 
