1.

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.

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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