 | John Hind - 1840 - 252 σελίδες
...£666. I3*. 4rf.V and I, or the whole mine, is worth (£666. 13*. 4rf.) x 10 = £6666. 13*. 4rf. (6) A can do a piece of work in 5 days, B in 6 and C in 7 : how much of it can they jointly do in 2 days? Assuming the piece of work to be represented... | |
 | David Henry Cruttenden - 1853 - 330 σελίδες
...carried 72 miles for $6.25, how far would it be carried for $125 ? Ans. 1440 miles. 175. A can perform a piece of work in 5 days, B in 6 days, and C in 8 days ; in what time can the three perform the same work ? Ans. 2 5?g days 176. A and B can perform... | |
 | John Hind - 1856 - 346 σελίδες
...4rf.: and 1, or the whole mine, will therefore be worth (£666. 13s. 4rf.) x 10 = £6666. 13*. (6) A can do a piece of work in 5 days, B in 6 and C in 7 : how much of it can they jointly do in 2 days ? Assuming the piece of work to be represented... | |
 | Henry Pix - 1861 - 116 σελίδες
...the money at 31 per cent. compound interest; what will he be worth at the end of three years? 6. A. can do a piece of work in 5 days, B. in 6, and C. in 7 ; how much of it can they jointly do in 2 days? 7. Supposing 15 bushels of barley at 5s.... | |
 | Ireland commissioners of nat. educ - 1865 - 184 σελίδες
...days, A and C in 12 days, and B and C in 9 days, find the time in which A, B, and C can do it. 16. A can do a piece of work in 5 days, B in 6, and C in 7, how much of it can they jointly do in Г days ? 17. Find the values of (i.) $ + f + 2-&... | |
 | Joseph Ray - 1866 - 250 σελίδες
...i+S5=4 Multiply both sides by 12ftx, and we have 3x-\-4x=12Q. 7z=120. o;=i^o=17^ min. 10. A can perform a piece of work in 5 days, B in 6 days, and C in 8 days ; in what time can the three perform it? Let £= the number of days in which all three... | |
 | Edward Henslowe Bedford - 1882 - 680 σελίδες
...Portion without backs 1 -- = — 12 12 Since TV of the books is 50, the whole is 1 2 x 50 = 600. Ans. A. can do a piece of work in 5 days, B. in 6, and G. in 7 ; hoic Tiiiu-h of it can they jointly do in 2 days, and in what time tcotthl they exactly... | |
 | George Albert Wentworth - 1885 - 300 σελίδες
...t + 1 = the part A and B can do in one day. x= Ц Therefore they will do the work in 2f days. 24 A can do a piece of work in 5 days, B in 6 days, and С in 7-| days ; in what time will they do it, all working togethef ? 25. A can do a piece of work in Щ days, B in 3^ days, and... | |
 | George Albert Wentworth - 1885 - 318 σελίδες
....'. $• + J = the part A and B can do in one day. Therefore they will do the work in Щ days. 24. A can do a piece of work in 5 days, B in 6 days, and С in 7-J- days ; in what time will they do it, all working together?. 25. A can do a piece of work in 2£... | |
 | George Albert Wentworth - 1886 - 284 σελίδες
...the part A and B can do in one day. 9x = 20 x = 2| Therefore they will do the work in 2f days. 24. A can do a piece of work in 5 days, B in 6 days, and С in 7.J- days ; in what time will they do it, all working together? 25. A can do a piece of work in 2^... | |
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A can do a piece of work in 5 days, B in 6 days, and C in 7£ days ; in what time will they do it, all working together? 
