1.

A train covered first 5 km of its journey at a speed of 30 km/hr. and 15 km at a speed of 45 km/hr. What is the average speed of the train ?

A. 35 km/hr
B. 40 km/hr
C. 32 km/hr
D. 42 km/hr
Answer» C. 32 km/hr


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