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Brain Teasers

Week 42 - Monday

#482

A cycling group are on a five day ride for charity.

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

The group now have 15 miles left to cycle.

How many miles have they travelled?