The respective ratio between the speed of a car , a train , and a bus is 5 : 9 : 4 . The average speed of the car, bus and train is 72 km / hr together . what is the average speed of the car and the train together?
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Job Solution Combined Bank (সমন্বিত ব্যাংক) Sonali, Rupali, Bangladesh Krishi, Rajshahi krishi unnayn,Investment Corporation of Bangladesh | 30.11.2018 গণিত
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