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Βιβλία Βιβλία 1 - 10 από 19 για If 15 men, 12 women, and 9 boys, can complete a piece of work in 50 days, what time....
" 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 23
των Richard Dunkley Beasley - 1867
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...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...

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...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...

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...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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