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MODULE 5 Answer the problem below. 1) Mindanao Island is the second largest island in the Philippines. To easily access the provinces and tourist spots of Mindanao, the Department of Transportation plans to design and construct train stations and railways on selected provinces of Mindanao. They decided to place trains that travels at a certain average speed for a distance of 63 km and then travels a distance of 72 km at an average speed of 6 km/h more than its original speed. If it takes 3 hours to complete the total journey of the train, what is its original avera
age speed?​