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If 9 men can do a piece of work in 8 days, how many men can do the same in 12 days?
Colburn's First Lessons: Intellectual Arithmetic, Upon the Inductive Method ... - Σελίδα 78
των Warren Colburn - 1828 - 160 σελίδες
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## The Sure Guide to Written Arithmetic: Designed for Beginners, and Summer ...

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## Arithmetic, Oral and Written: Practically Applied by Means of Suggestive ...

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## ANDREWS' SERIES OF LATIN SCHOOL BOOKS

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...the weight of sugar, at 6 cents a pound, may be purchased for 4 dollars and 20 cents ? 64. If 30 men can do a piece of work in 8 days, how many men could do the same piece of work in 12 days ? 65. When 20 men can do a piece of work in 12 days, in...

## Intellectual Arithmetic: Upon the Inductive Method of Instruction

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## The Rudiments of Written Arithmetic: Containing Slate and Black-board ...

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## An Intellectual Arithmetic: Upon the Inductive Method

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...men can do a certain piece of work in 6 ddys, in how many days can 4 men do the same ? 13. If 9 men can do a piece of work in 8 days, how many men can do the same in 12 days? 14. If 4 men can do a piece of work in 6 days, in how many days can 3 men...

## An Intermediate Arithmetic: Uniting Mental and Written Exercises in a ...

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...the lot? 8. If one man can build a wall in 36 days, how many men can build it in 4 days ? 9. If 6 men can do a piece of work in 8 days, how many men can do it in 12 days? 10. Two steamers start from the same port and sail in the same direction, one...

## Practical arithmetic for schools

...of | of the remainder for £3006J. What is the value of the whole at the same rate ? (48.) If 10 men can do a piece of work in 8 days, how many men could do a piece of work 4 times as great in J of the time ? (49.) If 27 men can reap a field in 15...

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

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...? The ratio of 2 oranges to 8 oranges equals the ratio of 10 cents to how many cents ? 8. If 6 men do a piece of work in 8 days, how many men would be required to do it in 1 day ? In 4 days ? 9. If 2 yards of muslin are worth 25| cents, how much are...

## An Intermediate Arithmetic: Uniting Mental and Written Exercises in a ...

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...the lot? 8. If 1 man can build a wall in 36 daj's, how many men can build it in 4 days? 9. If 6 men can do a piece of work in 8 days, how many men can do it in 12 days? 10. Two vessels start from the same port and sail in the same direction, one...