- A8
- B6
- C5
- D7.5
Step-by-Step Solution
The time difference is 15 minutes = 1/4 hour; d/5 - d/6 = 1/4 gives d/30 = 1/4, so d = 7.5 km.
Answer: D) 7.5
Walking at 5 km/h, a person reaches the office 10 minutes late; walking at 6 km/h, the person reaches 5 minutes early. What is the distance to the office in km?
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