From two cities between which distances of 846 km, there were at the same time towards to each other two trains. one went with a speed of 85 km/h, another with a speed of 60 km/h. What distance will be in 3 hours?

13
1) 60 + 85 = 145 km/h the speed of rapprochement 2) will pass 145 * 3 = 435 km in 3 hours 3) 846 - 435 = 411 km will be between them through 3 chasa85 + 60 = 145 km/h the speed of rapprochement of 145 * 3 = 435 km passed both trains in 3 hours 846 - 435 = 411 km distance between trains in 3 hours
398
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