A key to the intellectual arithmetic: containing answers and solutions of the more difficult examples in that work. For the use of teachers

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R.S. Davis, 1860 - Mathematics - 52 pages
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Page 51 - Divide 1 into 3 parts which shall be to each other as if and . 4. Divide 7 into 4 parts which shall be to each other as 3, 5, 8, and 2. 5. Divide $5000 among 3 persons so that the first shall have twice as much as the second and the second twice as much as the third.
Page 49 - J of the time past noon, |, or the whole time to midnight = 6X==i=2 times the time past noon ; hence the time from noon to midnight, or 12 hours, was 3 times the time past noon, and the time was of 12 hours = 4 hours past noon.
Page 3 - If one travels 3 and the other 4 miles an hour, at the end of one hour they will be...

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