.
Distance + Distance = whole Distance
5*(r-10) + 5*r = 1220
5r - 50 + 5r = 1220
10r = 1220 + 50 = 1270 ====> r = = 127.
Answer. 127 km/h is the rate of the faster train and 117 km/h is the rater of the slover train.
Check. = = 5 hours. ! Correct !
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