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例1.从甲地到乙地,如果骑自行车每小时行15千米,4小时到达。如果乘汽车只需2小时。汽车每小时行多少千米?一般解法:(1)甲地到乙地有多少千
Example 1. From A to B, if you ride a bicycle 15 km per hour, arrived 4 hours. If you take a car just 2 hours. How many kilometers does the car travel per hour? General solution: (1) How many thousands of land from A to B?