Mathematics, 14.07.2019 14:30, beyza13

Acar travels at a speed of 80 km/h for 2½ hours from town p to town q. then the car increases its speed by 25% and maintains that speed for a further 150 km from town q to town r. calculate the average speed for the whole journey.

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Acar travels at a speed of 80 km/h for 2½ hours from town p to town q. then the car increases its sp...