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Abdul while driving to school computes his average speed to be 20 km/hr . on his return trip there is less traffic and his average speed is 30 km/hr . find the average speed of Abdul's trip. |
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Answer» Abdul while driving to school computes his average speed to be 20 km/hr . on his return trip there is less traffic and his average speed is 30 km/hr . find the average speed of Abdul's trip. |
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