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" 7. Two men start from the same place and travel in opposite directions : one travels 3 miles an hour, and the other 4 miles an hour ; how far apart will they be at the end of 1 hour ? of 2 hours ? of 5 hours "
AN INTELLECTUAL ARITHMETIC, WITH AN INTRODUCTION TO WRITTEN ARITHMETIC. - Σελίδα 40
των A. WALTON, ELECTRA N. L. WALTON - 1869
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...yard, a watch worth 10 dollars, and the balance in money ; how much money did he receive ? Why ? 3. If two men start from the same place, and travel in opposite directions, one at the rate of 4 miles an hour, and the other at the rate of 6 miles an hour, how far apart will they...




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