plese solve it fastly
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let the length of train be X
according to question
(X+220)/30=(X+325)/39
on solving
13X+13*220=10X+10*325
3X=390
X=130m
speed=130+220/30=35/3m/s
according to question
(X+220)/30=(X+325)/39
on solving
13X+13*220=10X+10*325
3X=390
X=130m
speed=130+220/30=35/3m/s
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