A car travels 180 km from A to B at 60 kilometers per hour and returns from B to A along the same route at 90 kilometers per hour. The average speed, in kilometers per hour, for the round trip is :

Created: 2 months ago | Updated: 1 month ago
Job Solution Mercantile Bank Ltd Mercantile Bank Ltd - Officer - 24.04.2009 গণিত
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