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A car moves at the speed of 54 km/hr after repairing and moves at the speed of 36 km/hr before repairing. It covers a distance of x km in 6 hours after repairing. How much time will it take to cover a distance of 3x km before repairing?
- A24 hours
- B27 hours
- C32 hours
- D30 hours
Correct answer: B