Frisk ran the X km in 4 hours, and Chara ran the same distance in 3 hours. Who has from them a speed more and as far as? 10 points: 3

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Speed of Frisk x / 3 km/h the speed of Chara we compare km/h X/4 and we reduce to a common denominator 12: x/3-h/4=4kh/12-3kh/12= x / 12 the km/h on so many speed of Chara is more than the speed of FriskaBolshe speed at Chara) On the X Km/h
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