A girl while riding a bicycle moves with the speed of 10 km/h for 2 h and with the speed of 15 km/h for the next 3 h. Find the total distance moved by her and her average velocity.
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The total distance covered by the girl is simply 45+20 =65 kilometers. The average speed is total distance divided by the total time taken which is 65 kilometers divide by 5 hours. this gives us 13km/h as the average speed of the girl.
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