Αναζήτηση Εικόνες Χάρτες Play YouTube Ειδήσεις Gmail Drive Περισσότερα »
Είσοδος
 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
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## 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

...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 ...

...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

...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

...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...