The difference between the average speed in km/h of their trains are 53.538 km/h.
Step-by-step explanation:
The given is,
Davit's train travels 90 km in 50 minutes.
Mila's train travels 210 km. It leaves at 12:05 and arrives 13:35.
Step:1
From the given,
Time required to milas train travels 210 km
= 12:05 - 13:35
= 1.30 hours
Step:2
Time to Davit's train travels 90 km is need to convert in hours from minutes,
= 50 minutes
= [tex]\frac{50}{60}[/tex] hours
= 0.833 hours
Step:3
Average rate of Davits train,
= [tex]\frac{Distance traveled}{Time taken}[/tex]
= [tex]\frac{90}{0.833}[/tex]
= 108 km/h
Step:4
Average rate of Mila's train,
= [tex]\frac{Distance traveled}{Time taken}[/tex]
= [tex]\frac{210}{1.30}[/tex]
= 161.538 km/h
Step:5
The difference between the average speed of the both trains in km/h,
= 161.538 - 108
= 53.538 km/h
Result:
The difference between, the average speed of their trains are 53.538 km/h.
Answer:
32
Step-by-step explanation:
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