 | Warren Colburn - Mental arithmetic - 1826 - 176 pages
...what will 9 pounds cost? 18. If 5 firkins of butter cost forty dollars, what will 3 firkins cost ? 19. If 2 men can do a piece of work in 6 days, how long would it take 4 men to do the same work ? 20. If 6 men can do a piece of work in twelve days, in how many days will... | |
 | Warren Colburn - Arithmetic - 1828 - 192 pages
...will 9 pounds cost 1 18. If 5 firkins of butter cost forty dollars, what will 3 firkins cost 1 19. If 2 men can do a piece of work in 6 days, hov long would it take 4 men to do the same work 1 20. If 6 men can do n piece of work in twelve days,... | |
 | Warren Colburn - Mental arithmetic - 1829 - 180 pages
...will 9 pounds cost ? 18. If 5 firkins of 'butter cost forty1 dollars, what will 3 firkins cost? 19. If 2 men can do a piece of work in 6 days, bow long would it take 4 men to do the same work 7 20. If 6 men can do a piece of work in twelve days,... | |
 | Peirpont Edward Bates Botham - Arithmetic - 1836 - 104 pages
...: what will 2 yards cost ? о 17. A man, owing 20 dollars, paid 16: how many remain to be paid? 18. If 2 men can do a piece of work in 6 days : how long would it take 4 men to do it? о 19. What is the price of 7 yards of cloth : at 3 dollars a yard ? 20. If 6 barrels... | |
 | Warren Colburn - Arithmetic - 1840 - 190 pages
...will 9 pounds cost ? 18. If 5 firkins of butter cost forty dollars, what will 3 firkins cost ? 19. If 2 men can do a piece of work in 6 days, how long would it takg 4 men to do the same work? 20. If 6 men can do a piece of work in twelve days, in how many days... | |
 | Warren Colburn - Arithmetic - 1847 - 170 pages
...what will 9 pounds cost? 18. If 5 firkins of butter cost forty dollars, whnt will 3 firkins cost? 19. If 2 men can do a piece of work in 6 days, how long would 'it take 4 men to do the same work ? • 20. If 0 men can do a piece of work in twelve days, in how many days... | |
 | William Vogdes - Arithmetic - 1847 - 324 pages
...¿r — =the price of 7 Ibs. : 0 к дл consequently —-=62f cents. Answer. У 2. If 13 men could do a piece of work in 6 days, how long would it take 16 men to do it ? In how many days could 1 man do this work ? In 13x6. Therefore 16 men could do it... | |
 | James L. Enos - Mental arithmetic - 1851 - 156 pages
...is 6. 6 " 2 " 12. 6 " 3 " 18. 6 " 4 " 24. 6 times 9 is 54 6 " 10 " 6t 6 " 11 " 66 6 " 12 " 72. 39. If 2 men can do a piece of work in 6 days, in what time can 1 man perform the same work ? 5 times 1 is 5. 5 " 2 " 10. 5 " 3 " 15. 5 « 4 " 20.... | |
 | William James Milne - Arithmetic - 1882 - 224 pages
...months? 8. If a man earns $7 per week, and a boy $3, how much will both earn in 7 weeks? 9. If 4 men can do a piece of work in 6 days, how long would it take 1 man to do it? 10. What will 8 quarts of berries cost at 10 cents per quart? 11. What will 9 yards of cloth... | |
 | John Tilden Prince - 1894 - 120 pages
...in. high ? 9. How many bricks of the usual size in a pile which contains 1 cubic foot ? Allowing 3V of the volume for mortar, how many bricks laid in...days ? 12. A man has 18 bushels of potatoes. He sells f of them, and the rest he divides equally among 4 families. What does each family receive ? 13. A... | |
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If 2 men can do a piece of work in 6 days, how long would it take 4 men to do the same work ? 20. 
