Walking at the rate of 4 km an hour, a man covers a certain distance in 3 hours 45 minutes. If he covers the same distance on cycle, cycling at the rate of 16.5 km/hr, the time taken by him is :
[A] 45.55 minutes
[B] 54.55 minutes
[C] 55.44 minutes
[D] 55.45 minutes

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