Train delay

The train should be in the station for 10 minutes. It still has 32 km left. What is the expected delay if the train travels in 2 minutes 3 km except for the last section where it is 2 km in 5 minutes.

Correct result:

t =  15 min


t3=10 min s=32 km s1=s2=322=30 km s2=2 km t1=s1/3 2=30/3 2=20 min t2=5 min T=t1+t2=20+5=25 min t=Tt3=2510=15 min

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