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.
The Question: How many days does it
take before the snail reaches the top of
the pit ?
deep pit. Every day the snail climbs 5
meters upwards, but at night, it slides 4
meters back downwards.
The Question: How many days does it
take before the snail reaches the top of
the pit ?
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