| John Henry Walsh - 1908 - 314 σελίδες
...shadow at the same time measures 56 feet? 9. If 42 men require 18 days to do a certain piece of work, how many men will be required to do the same work in 27 days ? 10. If 49 acres of land produce 2450 bu. corn, how many bushels should be produced by 80... | |
| 1911 - 694 σελίδες
...the rate of income on the investment. 12. If 3 men can do a piece of work in 8 days of 10 hours each, how many men will be required to do the same work in 6 days of 8 hours each? (Solve by proportion.) 13. By selling a horse for $14*, a profit of 60 per... | |
| Emerson Elbridge White - 1876 - 240 σελίδες
...7. Charles receives 9 dollars a month as errandboy: how much will he earn in 10 months? 8. If 7 men can do a piece of work in 9 days, how many men will it take to do the same work in one day? 9. If a quantity of provisions will supply 10 men 9 days, how... | |
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