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A candidate misinterpreted the timings of an interview and reached the venue 35 minutes before the scheduled time. After 25 minutes, he presumed that the interview might have been cancelled and so he started walking back home at the speed of 1 km/h. But then he realized that he had left his bag there. So he comes back with the same speed and enters the office along with the interviewer, who is 5 minutes late. How much distance had he moved away from the office?