# The ratio between the speeds of two trains is 7 : 8. If the second...........then what is the speed of the first train ?

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The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, then what is the speed of the first train ?

posted Jan 8, 2016

Second train speed =s2=400km per 4 hour =100kmph
1st train speed=x
Ratio of speeds=7:8
Then
7:8::x/100
X=87.5kmph
Ans is 87.5kmph

answer Jan 8, 2016

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