The ratio between the speed of two trains is 3:4.If the second train runs 96kms in 4hrs,then what is the distance travelled by the first train in 3hrs
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let the speed of two train is x and y
the ratio between the two speeds of two train 3:4 means x/y =3/4
speed of second train is y=distance/time
y=400/4 =100km /hr
substitute value of y is equation above
x/y=3/4 x/100km /hr =3/4
cross multiplication
4x=3X100km/hr
4x=300km/hr
x=300km/hr/4
x=75 km/hr
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