 If 15 men, 12 women, and 9 boys, can complete a piece of work in 50 days, what time would 9 men, 15 women, and 18 boys, take to do twice as much, the parts done by each in the same time being as the numbers 3, 2, and 1 ? A.  Arithmetic for the use of schools. [3 pt. in 1]. - Σελίδα 23των Richard Dunkley Beasley - 1867Πλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | 1834 - 182 σελίδες
...which fire 5 rounds in 6 minutes, will kill 500 men in one hour at the same rate ? Answer, 20. 56. If 15 men, 12 women, and 9 boys, can complete a piece...in 50 days; how long would 9 men, 15 women and 18 G boys be in doing double the quantity, the parts done by each in the same time being as the numbers... | |
 | John Hind - 1840 - 252 σελίδες
...piece of work in 35 days : in what time can 7 men and 5 women do the same? Answer: l6^J days. (19) If 15 men, 12 women, and 9 boys can complete a piece of work in 50 days ; what time would 9 men, 15 women, and 18 boys take to do twice as much, the parts done by each in... | |
 | Roswell Chamberlain Smith - 1841 - 324 σελίδες
...perform a piece of work in 35 days, in what time can 7 men and 5 women do the same ! A. 16,!| days. 95. If 15 men, 12 women, and 9 boys, can complete' a piece of work in 50 days, what time would 9 men, 15 women, and 18 boys, take to do twice as much, the parts done by each in the... | |
 | Roswell Chamberlain Smith - 1842 - 320 σελίδες
...perform a piece of work in 35 days, in what time can 7 men and 5 women do the same ? A. 16f } days. 95. If 15 men, 12 women, and 9 boys, can complete a piece 'of work in 50 days, what time would 9 men, 15 women, and 18 boys, take to do twice as much, the parts done by each in the... | |
 | Roswell Chamberlain Smith - 1843 - 320 σελίδες
...; how long will the course last, and what distance will the hare have run ? A. 60^sec.; 490yd. 95. If 15 men, 12 women, and 9 boys, can complete a piece of work in 50 days, what time would 9 men, 15 women, and 18 boys, take to do twice as much, the parts done by each in the... | |
 | Roswell Chamberlain Smith - 1850 - 314 σελίδες
...perform a piece of work in 35 days, in what tune can 7 men and 5 women do the same ? A. W%£ days. 95. If 15 men, 12 women, and 9 boys, can complete a piece of work in 50 days, what time would 9 men, 15 women, and 18 boys, take to do twice as much, the parts done by each in the... | |
 | Barnard Smith - 1854 - 368 σελίδες
...spend in 63 days, who with an annual income of £818. is 90 guineas in debt at the end of a year ? 63. If 15 men, 12 women, and 9 boys, can complete a piece of work in 50 days, what time would 9 men, 15 women, and 18 boys take to do four times as much, the parts done by each... | |
 | James Cornwell - 1855 - 380 σελίδες
...the series 4 + 11 + 18 + . - - - to 9 terms, And also the series 3 + в + 12 + ' . . ' to 18 terms. If 15 men, 12 women, and 9 boys can complete a piece...days, how long would 9 men, 15 women, and 18 boys be in doing double the work ; the parts done by each man, woman, and boy respectively, in the same... | |
 | John Hind - 1856 - 346 σελίδες
...hours: how long will they be in mowing 11 acres if they all work together ? Answer: 3f hours. (21) If 15 men, 12 women and 9 boys can complete a piece of work in 50 days ; what time would 9 men, 15 women and 18 boys take to do twice as much, the parts done by each in the... | |
 | Roswell Chamberlain Smith - 1856 - 334 σελίδες
...perform a piece of work in 35 days, in what time can 7 men and 5 women do the same ? A. 16iJ days. 95. If 15 men, 12 women, and 9 boys, can complete a piece of work in 50 days, what time would 9 men, 15 women, and 18 boys, take to do twice as much, the parts done by each in the... | |
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