Calculate 2482

The train left Košice at 2:45 PM to Poprad, 120 km away. At 5:45 PM, we met in Poprad with an oncoming train from Žilina, 140 km from Poprad. Calculate what time the train left Žilina if you know that it was 8 km/h faster than the train from Košice.

Result

t = 14:50 h Wrong answer

Step-by-step explanation:

s1=120 km t1=14:45=14 hr 45 min =14+6045=14.75 hr=14.75 t2=17:45=17 hr 45 min =17+6045=17.75 hr=17.75  t3=t2t1=17.7514.75=3 h  v=s1/t3=120/3=40 km/h  v2=v+8=40+8=48 km/h  s2=140 km  s2 = v2 (t2t)  s2/v2 = t2t  t=t2s2/v2=17.75140/48=14.83333=14:50 h



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