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Βιβλία Βιβλία 1 - 10 από 19 για If a certain number of workmen can do a piece of work in 25 days, in what time will....
" If a certain number of workmen can do a piece of work in 25 days, in what time will... "
Arithmetic for the use of schools. [3 pt. in 1]. - Σελίδα 40
των Richard Dunkley Beasley - 1867
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The Principles and Practice of Arithmetic: Comprising the Nature and Use of ...

John Hind - 1840 - 224 σελίδες
...an article which he sells for 5*. Qd., what does he gain on every £100. ? Answer: £25. (21) If 15 workmen can do a piece of work in 25 days, in what time can 25 men do the same? Answer: 15 days. (22) How much in length, that is 3ft. 9 in. broad, will be...

Putnam's Arithmetic

Rufus Putnam - 1849 - 264 σελίδες
...cost $98.50, what will 360 acres cost? 4. If 54 acres cost $2160, what will 9 acres cost ? 5. If 7 men do a piece of work in 25 days, in what time will 5 men do it ? 6. If 5 men do a piece of work in 35 days, hi what time will 7 men do it ? 7. How many...

Cambridge examination papers: a suppl. to the University calendar, 1856-59

Cambridge univ, exam. papers - 1856
...1J of (A + j of A), find two whole numbers which shall bear to each other the ratio of A to B. 12. If a certain number of workmen can do a piece of work in 25 days, in what time will V] of that number of men do a piece of work twice as great, supposing that 2 of the first set can do...

The principles and practice of arithmetic

John Hind - 1856
...an article which he sells for 5s. 6d., what does he gain on every £100 ? Answer: £25. (24) If 15 workmen can do a piece of work in 25 days, in what time can 25 men do the same ? Answer: 15 days. (25) How much in length, that is, 3ft. 9m. broad, will be...

Miscellaneous examples in arithmetic

Henry Pix - 1861
...other the ratio of A to B. 10. Given that the square root of 105625 is 325, find that of 10582009. 11. If a certain number of workmen can do a piece of work...that number of men do a piece of work twice as great, supposing that two of the first set can do as much work in an hour as three of the second set can in...

First book of arithmetic for the use of schools. [With] Key. High-school ed ...

Alexander Kennedy Isbister - 1865
...days. „ 1 man - „ = 42 x 28 days.* 2 *ax 28 „ 21 men „ = ^ days. = 56 days. Anв. 4. If 15 workmen can do a piece of work in 25 days, in what time can 25 men do the ватe ? 5. If 8 horses subsist on a certain quantity of hay for 2 months, how long...

Artithmetic theoretical and practical

William Harding Girdlestone - 1867
...H of (^ + f of A), find two whole numbers which shall bear to each other the ratio of A to IS. 12. If a certain number of workmen can do a piece of work in 25 days, in what time will If of that number of men do a piece of work twice as great, supposing that 2 of the first set can do...

The civil service, army & university arithmetical guide

1869 - 63 σελίδες
...per cent., how much per cent. should I gain or lose by selling him for 70 guineas ? 5. 1. If 12 men can do a piece of work in 25 days, in what time will 10 men do a piece of work 1J times as great, if 3 men of the first set can do as much in an hour as...

The civil service arithmetic. [With] A key

Robert Johnston (F.R.G.S.) - 1872
...I gain $ of my outlay. What would I have gained per cent, had I sold it for 16s. 6d. ? 4. If 12 men do a piece of work in 25 days, in what time will 10 men do a piece of work 1} times as great, if 3 of the first set do ая much in an hour as 4 of...

Arithmetic for Schools

Barnard Smith - 1873 - 347 σελίδες
...men can be maintained for 10 weeks by the same quantity, if each man is limited to 8 oz. a day ? (/3) If a certain number of workmen can do a piece of work in 25 days, in what time will 1f of that number of men do a piece of work twice as great, supposing 2 of the first set can do as...




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