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Mensa Brainteasers

Week 36 - Thursday 

A group of cyclists ride from one town to another.

On the first day they cover one third of the total distance. The next day they cover one quarter of what is left. The following day they cover two fifths of the remainder and on the fourth day half of the remaining distance.

The cyclists now have 20 miles left.

How far have they travelled?



11 Sep 2017
Reveal answer