From Moscow to so so hot by air 2940 km from these Gorodov took off at the same time a meeting each other two planes in five hours to them it was necessary to fly by prior to a meeting of 90 km with what speed the second plane flew if the first flew by 290 kilometers per hour

290*5 = 1450 km the 1st plane of 2940-1450=1490 km flew by the 2nd flew by + 90 km prior to a meeting of 1490-90=1400 km flew by 2nd 1400:5=280km/ch the speed of the second
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