72. Calculating Early Arrival Time If man travels at speed of 20km/hr, he reaches 20 minutes late, if he travels at 30 km/hr, he reaches 15 minutes early, if he travels at a speed of 25 km/hr, then, how much minutes early he reaches the office? Submitted by tartle · Added 15 February 2013 Show Hint Show Solution Hint: Consider the total distance and the time taken at different speeds to find the time difference. Solution: The man reaches the office 5 minutes early when traveling at 25 km/hr.
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