A person travel 600 km by train and car.400 km travel by train
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Given
Total distance = 600 km
Consider speed of Train = x km/h
Consider speed of Car = y km/h
According to the question:
We know Time = distance/speed
Situation 1
He takes 8 hours if he travels 120 km by train and rest by car
120/x + 480/y = 8-------(1)
Situation (2)
when he travels 200 km by train and rest by car he takes 8 hr 20 min
8 hr 20 min = 25/3 hr
200/x + 400/y = 25/3 ---------(2)
solve equation 1 and 2
you'll get x = 60
so the speed of the train = 60 km/h(option 7)
Total distance = 600 km
Consider speed of Train = x km/h
Consider speed of Car = y km/h
According to the question:
We know Time = distance/speed
Situation 1
He takes 8 hours if he travels 120 km by train and rest by car
120/x + 480/y = 8-------(1)
Situation (2)
when he travels 200 km by train and rest by car he takes 8 hr 20 min
8 hr 20 min = 25/3 hr
200/x + 400/y = 25/3 ---------(2)
solve equation 1 and 2
you'll get x = 60
so the speed of the train = 60 km/h(option 7)
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