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How many days will it take the snail to get out of the tunnel?

+1 vote
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A tunnel is 12metres deep and a snail is at the bottom of the tunnel.
Everyday, it climbs a height of 600cm but at night,
it slides down a depth of 400cm.
How many days will it take the snail to get out of the tunnel?

posted Jul 13, 2018 by Nimish

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