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The ratio of the speed between a car, a train and a tractor is 3 : 6 : 1 respectively. The average speed of the train is 6 times the average speed of the tractor which covers 175 km in 7 hours. What is the sum of the speed of the car and the train?

Correct Answer: 225 km/h

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Math MCQ: The ratio of the speed between a car, a train and a tractor is 3 : 6 : 1 respectively. The average speed of the train is 6 times the average speed of the tractor which covers 175 km in 7 hours. What is the sum of the speed of the car and the train? | Extra Education