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Mensa Brainteasers

Week 50 - Monday 

Early one morning a family travelled to a shopping centre at 35 mph.

After a day of Christmas shopping they returned, over exactly the same distance, at a crawl of only 14 mph.

What was their average speed over the entire journey?

 

 

 

   

 

 

 

 

 

 

14 Dec 2017