155 മീ, 125 മീ. നീളമുള്ള രണ്ട് തീവണ്ടികൾ സമാന്തരപാതകളിൽ 76km/hr, 58km/hr വേഗത്തിൽ സഞ്ചരിക്കുന്നു. ഇവ പരസ്പരം കടന്നുപോകാൻ എത സമയം വേണം ?
A1 മിനിറ്റ്
B48 സെക്കൻഡ്
C56 സെക്കൻഡ്
D37 സെക്കൻഡ്
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