 | Charles Austin Hobbs - 1889 - 366 σελίδες
...work in 12 hours ; in what time can it be finished by B and C, working separately equal times ? 18. A and B can do a piece of work in 6 days, A and C in 7 days, and B and C in 8 days ; in what time can all three do it, working together, and... | |
 | William James Milne - 1897 - 194 σελίδες
...a day for his board. At the end of 40 days he receives $ 75. How many days has he been idle ? 168. A and B can do a piece of work in 6 days ; A and C can do it in 8 days ; B and C can do it in 12 days. How long will it take the three together... | |
 | Wilbur Fisk Nichols - 1903 - 328 σελίδες
...\ of it. If $375 was the difference between the sons' shares, what was the value of the estate ? 6. A and B can do a piece of work in 6 days. A can do it alone in 10 days. In what time can B do it? 7. I called for bids in a piece of work. A... | |
 | John Marvin Colaw - 1903 - 444 σελίδες
...more than he gave, and received $ 20 more than he originally paid. How many yards did he buy ? 31. A and B can do a piece of work in 6 days. It takes B 5 days longer than A to do the work alone. In how many days can each do the work alone ?... | |
 | John Marvin Colaw, Frank Williamson Duke - 1906 - 408 σελίδες
...in 3 days, and B can do it in 5 days. How many days will it take both together to do the work ? 81. A and B can do a piece of work in 6 days, and A can do it in 9 days. In how many days can B do the work ? 82. A water tank is supplied by 3 pipes.... | |
 | Wilbur Fisk Nichols - 1899 - 146 σελίδες
...J of it. If $375 was the difference between the sons' shares, what was the value of the estate ? 6. A and B can do a piece of work in 6 days. A can do it alone in 10 days. In what time can B do it? 7. I called for bids in a piece of work. A... | |
 | John Bascom Hamilton, Herbert Earle Buchanan - 1921 - 310 σελίδες
...worth $5660, counting the cows at $40 each and the horses at $100 each. How many of each are there? 19. A and B can do a piece of work in 6 days. After working together for 2 days, A quit and B finished the work alone in 10 days. How many days would... | |
 | Clarence Elmer Comstock, Mabel Sykes - 1922 - 332 σελίδες
...added to the denominator of the same fraction the value of the fraction is |. Find the fraction. 31. A and B can do a piece of work in 6 days. A works 2 days and B 3 days and in that time they do £ of the work. How long will it take each to... | |
 | 270 σελίδες
...and their heights are as 1 : 3. Their volumes are in the ratio of a) 1:2 b) 2:3 c) 3:1 d) 3:4 149. A and B can do a piece of work in 6 days and A alond can do it in 9 days. The time taken by B alone to do the work is a) 18 days b) 15 days c) 12... | |
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A and B can do a piece of work in 6 days ; A... 
