Question

The average speed of 20 vehicles during a survey was noted as 60 km/h. Later it was observed that one speed was wrongly taken as 72 km/h instead of 62 km/h, and another was noted as 55 km/h instead of 65 km/h. What is the actual average speed?

A 48 km/h
B 32 km/h
C 58 km/h
D 60 km/h
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