 | Warren Colburn - Mental arithmetic - 1826 - 176 pages
...firkins of butter cost 26 dollars, what will 7 firkins cost ? 15. If 3 men can do a piece of work in 7 days, how long will it take 1 man to do it ? How long would it take 4 men ? 16. If 2 cocks will empty a cistern in 3 hours, in how long a time would 1 empty... | |
 | Warren Colburn - Arithmetic - 1828 - 186 pages
...it for f of what it cost him ; how much did he gain ? (• 3. If 7 men can do a piece of work in 4f days, :/• .~ how long will it take 1 man to do it ? How long will it take 3 men to do it ï /J 4. If 4 men can do a piece of work in Щ days, how long would it take to do it if 7 men were... | |
 | Warren Colburn - Arithmetic - 1828 - 192 pages
...sold it for £ of what it cost him ; how much did he gain? 3. If 7 men can do .a piece of work in 4f days, how long will it take 1 man to do it ? How long will it tqke 3 men to do it ? 4. If 4 men can do a piece of work in 9f days, how long would it take to do it,... | |
 | Warren Colburn - Mental arithmetic - 1829 - 180 pages
...quantity of flour fot 5Щ dol» lars, and sold it for f of what it cost him ; how much did he gain ? 3. If 7 men can do a piece of work in 4£ days, how long...man to do it ? How long will it take 3 men to do it ? 4. If 4 men can do a piccf of work in 9J days, how long would it take to do it if 7 men were em ployed... | |
 | Warren Colburn - Arithmetic - 1836 - 216 pages
...for f of what it cost him ; how much did he gain ? , 3. If 7 men can do a piece of work in 4f (Mays, how long will it take 1 man to do it ? How long will it take 3 men to do it ? 4. If 4 men can do a piece of work in 9^ days, how ion.g would it take to do it if 7 men were employed... | |
 | Warren Colburn - Arithmetic - 1847 - 170 pages
...quantity of flour for 53 1 dollars, and sold it for f of what it cost him ; ho» much did he gain? 3. If 7 men can do a piece of work in 4$ days, how long will it take 1 man to do it 1 How loug will it take 3 men to do it 1 4. If 4 men can do a piece of work in 9^ days, how long would... | |
 | Conley Plotts - Arithmetic - 1848 - 276 pages
...garrison 56 days ? How many ounces per day must be allowed that the provisions may last 32 days ? 54. If 7 men can do a piece of work in 4£ days, by working 9^ hours per day, how many hours per day must they labor to accomplish the same work in... | |
 | Warren Colburn - Arithmetic - 1849 - 166 pages
...firkins of butter cost 26 dollars, what will 7 firkins cost ? 15. If 3 men can do a piece of work in 7 days, how long will it take 1 man to do it? How long would it take 4 men ? 16. If 2 cocks will empty a cistern in 3 hours, in how long a time would 1 empty... | |
 | Warren Colburn - Arithmetic - 1858 - 208 pages
...firkins of butter cost 26 dollars, what will 7 firkins cost ? 15. If 3 men can do a piece of work in 7 days, how long will it take 1 man to do it ? How lung would it take 4 men ? 16. If 2 pipes will empty a cistern in 3 hours, in how long a time would... | |
 | Richard Nelson - Arithmetic - 1867 - 304 pages
...$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 7 persons, how much will... | |
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If 7 men can do a piece of work in 4| days, how long will it take 1 man to do it ? How long will it take 3 men to do it ? 4. 
