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" A and B working together can do a piece of work in 12 days. "
Elementary Algebra - Σελίδα 333
των Herbert Ellsworth Slaught, Nels Johann Lennes - 1915 - 373 σελίδες
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First Lessons in Algebra: In which the Elements of the Science are ...

Samuel Alsop - 1856 - 152 σελίδες
...days. Now, as A. alone could do it in 18 days, in what time could B. do it 1 Ans. 36 daya. Ex. 41. A. and B. working together, can do a piece of work in с days ; B. being taken sick before commencing, A. performed it alone in a days. In what time could...

A Complete Arithmetic: Uniting Mental and Written Exercises in a Natural ...

Emerson Elbridge White - 1870 - 350 σελίδες
...shall have f as much as the first, and the third \ as much as the other two together. 194. A and B can do a piece of work in 12 days, B and C in 9 days, and A and C in 6 days : how long will it take each alone to do it? 195. A and B perform...

Elementary Mathematics: Embracing Arithmetic Geometry, and Algebra

Lewis Sergeant - 1873 - 182 σελίδες
...third part. (18.) Divide £10. 10s. between A and B, so that A may receive f of what B receives. (19.) A and B working together can do a piece of work in 13 days. A works three times as hard as B ; in what time could he do the work alone ? (20.) I buy a...

Rules and examples in algebra. 2 pt. [and] Key, Τόμος 1

Thomas Dalton - 1874 - 236 σελίδες
...men to work at the trench, it would be finished in 9 days. What length do they dig in a day ? 26. A can do a piece of work in 12 days ; B and C together can do the same piece of work in 4 days ; A and C can do it in half the time in which B alone...

The Common School Teacher, Τόμος 4

1878 - 446 σελίδες
...years respectively. How much will each receive? Perform by analysis and by proportion. 30. A and B can do a piece of work in 12 days. B and C in 9 days, and A and C in 6 days. How long will it take each to do it ? GEOGRAPHY. 1. What two great...

The Complete Arithmetic: Combining Oral and Written Exercises in a Natural ...

Albert Newton Raub - 1877 - 348 σελίδες
...he make if the note is discounted at 6%, no days of grace being allowed ? Ans. $20.80. 71. A and B can do a piece of work in 12£ days, B and C in 15 days, and A and C in 14 days : how many days will it take each alone to do it ? Ans. А, 23£f...

Arithmetic for Pupil Teachers

George Ricks - 1881 - 288 σελίδες
...income tax of 5d. in the £, there may remain a clear return of 3¿ per cent, on the cost 1 76. Two men, A and B, working together, can do a piece of work in 10 days ; but if after 4 days A stops working, B can finish the work in 14 days more, compare their...

The Ohio Educational Monthly and the National Teacher: A Journal ..., Τόμος 30

1881 - 516 σελίδες
...days; A can mow only f as much as B; how long will it take each to mow a field 4-5.as large? 2. A and B can do a piece of work in 12 days, B and C in 9 days, and A and C in 6 days; how long will it take each alone to do it? WRITTEN ARITHMETIC. 3....

Physical Arithmetic

Alexander Macfarlane - 1885 - 412 σελίδες
...of a piece of work in 74 hours, in what time will 10 men and 12 boys do the remainder ? 6. Two men A and B working together can do a piece of work in 10 days ; but if A stops working after 4 days, B can finish the work in 14 days more. Compare their...

A Mathematical Solution Book Containing Systematic Solutions to Many of the ...

Benjamin Franklin Finkel - 1888 - 518 σελίδες
...in 5 days, and ' * ( B can do the work in 4 days. ( White's Comp. A.,p. 280, prob. 193.) I. A and B can do a p.iece of work in 12 days, B and C in 9 days, and A and C in 6 days; how long will it take each alone to do the work ? 1. 12 days=time...




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