The speed of a train is 220% of the speed of a car. The car covers a distance of 950 km in 19 hours. How much distance will the train cover in $3\frac{1}{2}$ hours?

385 km

220% = \(\frac{55 }{25}\)

Ratio of speed of  ,  Car  : Train

                              25   :   55

Speed of car = \(\frac{950 }{19}\) = 50 km/h

ATQ ,

25R = 50 km/h

1R = \(\frac{50 }{25}\)  = 2 km/h 

Speed of train = 55R = 55 × 2 = 110 km/h

Distance covered by train in 3\(\frac{1 }{2}\) hour = \(\frac{7 }{2}\)  × 110

= 385 km