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Aunt's Ol' Jalopy

Math brain teasers require computations to solve.

 

Puzzle ID:#49384
Fun:*** (3.07)
Difficulty:** (1.61)
Category:Math
Submitted By:firefox99tus******

 

 

 



After visiting my Great Aunt Annie, I travelled home in her old jalopy. The car was old and battered, it had a leak from the petrol tank, and I was stuck in second gear.

This meant that I could only travel along at a steady 30 miles per hour and managed a paltry 20 miles per gallon of fuel.

At the start of the journey I had placed exactly 10 gallons of fuel into the tank. I knew though, that the fuel tank lost fuel at the rate of half a gallon per hour.

Just as I arrived home, the car stopped because it had run out of fuel and I had only just made it.


How far was it from my Great Aunt's to my home?

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