A car crosses a man walking at 6 km/h. T...

A car crosses a man walking at 6 km/h. The man can see the things upto 450 m only in one direction due to fog. He sees the car which was going in the same direction for 4.5 minutes. What is the speed of the car?

9 km/h

12 km/h

12.5 km/h

15 km/h

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