# TWO GORODOV NASTRECHU LEFT TRAINS AND MET CHEREZ18 OF HOURS. DETERMINE THE SPEED OF EACH TRAIN IF DISTANCE BETWEEN THE CITIES OF 1620 KM, AND THE SPEED OF ONE TRAIN IS 10 KM MORE BIGGER THAN ANOTHER

Ustinovich

120

H-speed of the first train, x-10 speed of the second. Together for an hour = (2H-10) the Equation 18*(2H-10) =1620 36X =1620+180 x =50 - the speed of first 40 the speed of the second

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kazimir

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