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" 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 Arithmetic - Σελίδα 340
των George Roberts Perkins - 1850 - 347 σελίδες
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The Progressive Arithmetic: Parts I-III.

Wilbur Fisk Nichols - 1903 - 328 σελίδες
...11. A watch cost $70 more than a chain, and together they cost $160. How much did each cost? 12. A can do a piece of work in 3 days, B in 4 days, and C in 5 days. How much can each do in a day ? How much can all do in a day? How many days will it take, all working together,...

Graded Lessons in Arithmetic, Βιβλίο 6

Wilbur Fisk Nichols - 1899 - 146 σελίδες
...11. A watch cost $70 more than a chain, and together they cost |160. How much did each cost? 12. A can do a piece of work in 3 days, B in 4 days, and C in 5 days. How much can each do in a day ? How much can all do in a day? How many days will it take, all working together,...

New Graded Lessons in Arithmetic, Βιβλίο 7

Wilbur Fisk Nichols - 1910 - 160 σελίδες
...At 5% find the interest on $50 for one year. 12. At 6% find the interest on $60 for 60 days. 13. A can do a piece of work in 3 days, B in 4 days. How much can each do in a day? How much can both do in a day? How many days will it take, both working...

First Course in Algebra

Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - 1917 - 344 σελίδες
...days, В and С each in 8 days, D in 12 days. How many days will they require, working together ? 23. A can do a piece of work in 3 days, B in, 4| days. How many days will they require, working together ? 24. A can do a piece of work in 8 days, A and В...

Complete School Algebra

Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - 1919 - 536 σελίδες
...each in >. 8 days, D in 12 days. How many days will they require, N. working together ? v X/^ 23. A can do a piece of work in 3 days, B in 4|- days. How N^> many days will they require, working together ? >^^ 24. A can do a piece of work in 8 days,...

Problem Arithmetic: An Inductive Drill Book

Harry Brooks - 1923 - 358 σελίδες
...class failed in an examination, and 14 pupils passed, how many pupils were there in the class ? 15. A can do a piece of work in 3 days, B in 4. How long would it take them to do it together? WRITTEN PROBLEMS XLH 1. A French transport sailing from...

New First Course in Algebra

Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - 1926 - 456 σελίδες
...for four subjects. What grade must she make in a fifth subject so that her average will be 88? 22. A can do a piece of work in 3 days, B in 4 days, and C in 5 days. How long will it take them, working together, to do the same work? Solution. By the conditions of the problem...

A Course for Teachers of Junior High School Mathematics, Τεύχος 313

William Leonard Schaaf - 1928 - 176 σελίδες
...a text of today to note the difference. Of the former, the following are typical examples : ( I ) A can do a piece of work in 3 days, B in 4 days, and C in 5 days ; how many days will it take them to do it working together? (2) A man, being asked if he had 100 chickens, said...




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