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Mensa Prize Puzzle Competition - March 2021


A spider is making his way back to his web to see if a tasty morsel has got caught in it.

In the first hour he covers one quarter of the total distance to the web. In the second hour he covers one third of the remaining distance.

In the third hour he covers one quarter of the remainder and in the fourth hour he covers half of the remaining distance.

He now has three metres left.

How many metres has the spider travelled?


13 Metres.

Closing Date: 
Wednesday, March 31, 2021
Show Answer On: 
Thursday, April 1, 2021