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From a to B, the bus had to travel 7 hours. After the opening of the expressway, the average speed increased by 20 kilometers per hour. It only takes 5 hours to get there______ Kilometers
Suppose: the distance between a and B is x kilometers. According to the equation, we get: (X7 + 20) × 5 = x, and the solution is: x = 350. The distance between a and B is 350 kilometers
From a to B, buses need to travel for 7 hours. After the opening of the expressway, the average speed has increased by 10 kilometers per hour. It only takes 5 hours to get there. What is the distance between a and B?
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