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Mensa Prize Puzzle Competition - April 2020

Question: 

A car has travelled 45 miles at 40 mph.

It started its journey with 10 gallons of fuel but its tank has been leaking throughout the journey and is now dry.

The car completes 30 miles per gallon.

How many gallons of fuel does it leak per hour?

Answer: 

7.5555

Closing Date: 
Thursday, April 30, 2020
Show Answer On: 
Friday, May 1, 2020