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 Βιβλία Βιβλία 1 - 10 από 24 για A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many....
A can do a piece of work in 3 days, B in 4 days, and C in 5 days, how many...
... An Elementary Arithmetic ... Serving as an Introduction to the Higher ... - Σελίδα 334
των George Roberts Perkins - 1850 - 347 σελίδες
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## An Elementary Arithmetic ...: Serving as an Introduction to the Higher ...

George Roberts Perkins - 1846 - 258 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 ? i - Ans. 2T2j...

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

George Roberts Perkins - 1851 - 347 σελίδες
...(" I gain iV of a cent on each cent . J 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...alone, than it will take A and C together to do it ? Ant. 2-rV times. 26. If A can accomplish a piece of work in \ of a day, B in i of a day, and C in...

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

George Roberts Perkins - 1855 - 347 σελίδες
...sell them at 4 cents apiece? f" I gain Vj of a cent on each cent . I employed in the purchase. If I 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 daj's, B in 4 days. and C in 5 days, how manj' times longer will it take B to do it alone, than it...

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

Charles Davies - 1856 - 437 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...

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

Charles Davies - 1861 - 336 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...

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

Daniel Leach, William Draper Swan - 1861 - 324 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 - 276 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 - 276 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....

## University Arithmetic: Embracing the Science of Numbers, and General Rules ...

Charles Davies - 1870 - 466 σελίδες
...7 feet, what is the height of a steeple, whose shadow is 196 feet, at the same time of day ? 64. A can do a piece of work in 3 days, B in 4 days, and C iu 6 days : in what time will they do it, working together ? 05. A can build a wall in 15 days, but...

## The Model Mental Arithmetic: Containing Oral Exercises for Graded and ...

Edgar Arthur Singer - 1876 - 184 σελίδες
...what part can each do in 1 day ? What part can all do ? In what time can all do it together ? 28. A can do a piece of work in 3 days, B in 4 days, and C in 6 days. In what time can all do it together ? 29. If A and B together can mow | of a field in a day,...