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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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James Stewart Eaton - 1877
...oilier seven ; how far apart are they at the end of one hour ? How far at the end of seven hours ? 8. Two men start from the same place and travel in opposite directions, one at the rate of two miles in an hour, and the other six ; how far apart are they in seven hours ? How...

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...8 times 8 than 7 times 9 ? 6. How much more is 8 times 9 than 10 times 7 ? Than 6 times 12 ? 7. If two men start from the same place, and travel in opposite directions, the one traveling at the rate of 3 miles an hour, and the other at the rate of 4 miles an hour, how...

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Horatio Nelson Robinson - 1877
...coat, 3 yards for a pair of pantaloons, and 1 yard for a vest ; how many yards were left ? 4. If 2 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 5 miles an hour, how far apart will they...

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