A girl rides a bicycle with …
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Yogita Ingle 6 years, 7 months ago
In the first 2 hours the girl was riding at a speed of 10km/h this means that she covered a distance of 20 kilometers.
In the next 3 hours she cycled at a speed of 15km/hr which means that she covered a distance of 45 kilometers.
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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