The skier can pass distance in 20 km for 2 h, the cyclist can pass the same distance on the highway for 1 h, the car - in 20 min. What speed of the skier, cyclist and car?

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1) 20:2=10 km/h - the skier's v 2)20:1=20 km/Parts v of the cyclist 3)20: 1/3=60 km/h - v mashiny1) 20:2=10 (km/h) - the speed of l of a yzhnik 2) 20:1 = 20 (km/h) - the speed of the cyclist of 3)20:20=1 (km/min.) - speed of the car
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Answer add