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How many days does it take before the snail reaches the top of the pit?

+3 votes

A snail is at the bottom of a 20 meters deep pit. Every day the snail climbs 5 meters upwards, but at night, it slides 4 meters back downwards. How many days does it take before the snail reaches the top of the pit?

posted Apr 28, 2014 by anonymous

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1 Answer

0 votes

The snail will reach at the top in 16 days as on the 16th day it will climb up 5 meters and will reach on the top and will not fall downwards.

answer Apr 28, 2014 by Priyaa Trippayar Sahasranaman

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