SOLUTION: On a trip to Florida, I drove at a steady rate of 65 miles per hour. My father-in-law�s car had a horrific vibration if he drove slower than 78 miles per hour (or so he claimed).

Question 383370: On a trip to Florida, I drove at a steady rate of 65 miles per hour. My father-in-law�s car had a horrific vibration if he drove slower than 78 miles per hour (or so he claimed). If we were traveling the same stretch of road and began at the same spot, how many hours did it take for him to be 52 miles ahead of me?

Good luck everyone who tries
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Well if he drove 78 mph consistently, then after one hour you'll be 13 miles apart, so after 4 hours you'll be 52 miles apart.
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