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" A can do a piece of work in 3 days, B in 4 days, and C in 6 days : in what time will they do it, working together ? 65. "
The Model Mental Arithmetic: Containing Oral Exercises for Graded and ... - Σελίδα 178
των Edgar Arthur Singer - 1876 - 184 σελίδες
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An Elementary Arithmetic ...: Serving as an Introduction to the Higher ...

George Roberts Perkins - 1846 - 266 σελίδες
...employed in the purchase. If the whole sum employed was 15 cents, I should gain 1 cent. 24. If A can can do a piece of work in 3 days, B in 4 days, and C in 5 days, how much longer will it take B to do it alone, than it will take A and C together to do it...

An Elemtary Arithmetic ...: Serving as an Introduction to the Higher ...

George Roberts Perkins - 1849 - 346 σελίδες
...employed in the purchase. If ! the whole sum employed was 15 L cents, I should gain 1 cent. 25. If A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many times longer will it take B to do it alone, than it will take A and C together to...

An Elementary Arithmetic Serving as an Introduction to the Higher Arithmetic

George Roberts Perkins - 1850 - 364 σελίδες
...employed in the purchase. If j the whole sum employed was 1 5 I cents, I should gain 1 cent. 25. If A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many times longer will it take B to do it alone, than it will take A and C together to...

An Elementary Arithmetic Designed for Academies and Schools: Also Serving as ...

George Roberts Perkins - 1851 - 356 σελίδες
...employed in the purchase. If ] the whole sum employed was 15 I cents, I should gain 1 cent. 25. If A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many times longer will it take B to do it alone, than it will take A and C together to...

A Practical and Theoretical Arithmetic: Designed for the Use of Schools and ...

Charles D. Lawrence - 1854 - 336 σελίδες
...of |- of 10 tuns of wine for 8-483.84 ; what was that per gill ? Ans. $0.015. 10. A can dig a well in 3 days, B in 4 days, and C in 6 days ; how long will it take all of them together to dig it ? Ans. 11 days. 11. A person spent f of his...

New University Arithmetic: Embracing the Science of Numbers, and Their ...

Charles Davies - 1856 - 450 σελίδες
...other. A goes 5 miles an hour, and B 4 miles : how many miles must each travel before they meet ? 49. A can do a piece of work in 3 days, B in 4 days, and C in 6 days : in what time will they all do it, working together ? 50. A can build a wall in 15 days, but with the assistance...

Davies' University Arithmetic: Embracing the Answers, and a Full Analysis ...

Charles Davies - 1861 - 496 σελίδες
...shadow of 7 feet, wLat is the height of a steeple, whose shadow is 196 feet, at the time of day? 64. A can do a piece of work in 3 days, B in 4 days, and C in 6 days : in what time will they do it, working together ? 65. A can build a wall in 15 days, but with the assistancfe of...

A Theoretical and Practical Arithmetic: Designed for Common Schools and ...

Daniel Leach, William Draper Swan - 1861 - 344 σελίδες
...paid for it, and 12| per cent, less than he asked. What did he ask for it ? No. V. 1. A can perform a piece of work in 3 days, B in 4 days, and C in 12 days. In what time will they finish it if they all work together ? 2. What number is that to which,...

The Elementary and Complete Examiner: Or, Candidate's Assistant: Prepared to ...

Isaac Stone - 1869 - 278 σελίδες
...and 7 o'clock will the hour and minute hands of a clock be exactly together? Art. 199. Ex. 46. 13. A can do a piece of work in 3 days; B, in 4 days; C, in 6 days : in what time will they all do it, working together? Art. 199. Ex. 49. CAUSE AND EFFECT....

The Elementary and Complete Examiner: Or, Candidate's Assistant: Prepared to ...

Isaac Stone - 1869 - 272 σελίδες
...and 7 o'clock will the hour and minute hands of a clock be exactly together? Art. 199. Ex. 46. 13. A can do a piece of work in 3 days ; B, in 4 days ; C, in 6 days: in what time will they all do it, working together? Art. 199. Ex. 49. CAUSE AND EFFECT....




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