Mathematics, 08.12.2019 19:31, xojade

At a distance of 30 km, one skier skied 20 minutes faster than the other. the first skier skied at 3km / h faster than the second. at what speed did each skier skied?
pls, can someone solve this problem?

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At a distance of 30 km, one skier skied 20 minutes faster than the other. the first skier skied at 3...