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A train travels 60km in y minutes.If this average speed is 400km per hour,find the value of y​
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A train travels 60km in y minutes.If this average speed is 400km per hour,find the value of y​

User Tzen
by
7.3k points

1 Answer

4 votes

Answer:

9

Explanation:

Speed of the train is:

  • 60 km / y min

And average speed is:

  • 400 km / h = replacing 1 h with 60 min
  • 400 km/ 60 min = 20 km /3 min = 60 km / 9 min

Comparing the two above, we see y= 9

User Reinto
by
6.4k points
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