The settlement in the prltivlozhny directions left two pedestrians. In 3 h the distance between them was equal to 27 km. One of them went with a speed 4km/h. With what sklrost there was the second pedestrian.

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1) 27:3-4=5 (km/h) - the speed of the second pedestrian Answer: 5 km/h speed of the second pedestrian.1) 27:3=9 (km. / h) speed of removal 2), 9-4=5 (km. / h). Answer: 5 km. speed of the second pedestrian is equal
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Answer add