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MathNet 2022-part-06 — 196 problems (EN–VI) Question 114

Math Olympiad Vault · MathNet 2022-part-06 — 196 problems (EN–VI)

Question 114

Candice starts driving home from work at 5:00 PM. Starting at exactly 5:01 PM, and every minute after that, Candice encounters a new speed limit sign and slows down by 1 mph. Candice's speed, in miles per hour, is always a positive integer. Candice drives for $2/3$ of a mile in total. She drives for a whole number of minutes, and arrives at her house driving slower than when she left. What time is it when she gets home?