@ 2020 כל הזכויות שמורות – ThinkinGames
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36
The spider
A spider must climb a wall 30 meters high. During the day it rises 3 meters but at night it slides down two meters. How many days will the spider need to climb the wall?
28 meters. Every day the spider rises one meter
and on the 27th day it will reach a height of 27 meters,
so that at the beginning of the 28th day it will
rise 3 meters and reach the top of the wall.
The spider
A spider must climb a wall 30 meters high. During the day it rises 3 meters but at night it slides down two meters. How many days will the spider need to climb the wall?
28 meters. Every day the spider rises one meter
and on the 27th day it will reach a height of 27 meters,
so that at the beginning of the 28th day it will
rise 3 meters and reach the top of the wall.
