1.

A man travelled 12 km at a speed of 4 km/h and further 10 km at a speed of 5 km/hr. What was his average speed?

A. 4.4 km/h
B. 4.5 km/h
C. 5.0 km/h
D. 2.5 km/h
Answer» B. 4.5 km/h


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