A person travels 340 km in 8 h. the first part of the journey, he travels by car at the speed of 50 km/h and in the second part of the journey he travels by train at the speed of 38 km/h. how many km did he travel by train?
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Given,
Total distance = 340 km
Total time = 8 hours
Speed of car = 50 km/h
Speed of train = 38 km/h
To find,
Travelling time in the train.
Solution,
We can simply solve this mathematical problem by using the following mathematical formula process.
Let, the travelling time in the train = x hours
So, the travelling time in the car = (8-x) hours
Distance covered by the train = 38 × x = 38x km
Distance covered by the car = (8-x) × 50 = 400-50x km
According to the data mentioned in the question,
38x+400-50x = 340
400-12x = 340
-12x = -60
x = 5
Hence, the travelling time of train is 5 hours.
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