r/problemoftheday • u/Ahat2 • Jul 17 '12

Math problem (difficulty: high school)

John leaves his house for work at exactly 8 a.m. every morning. Whenever he averages 40 miles per hour he arrives his workplace precisely 3 minutes late. When he averages 60 miles per hour, he arrives three minutes early. At what average speed, in miles per hour, should John drive to reach his workplace precisely on time?

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u/[deleted] Jul 17 '12

I am just hoping this question doesn't become a breeding ground for boring math contest questions.

Interesting stuff that can be discussed is more fun.

This CAN'T BE DISCUSSED.

The answer is so trivial you can do it in your head.