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Mathematics 21 Online
OpenStudy (anonymous):

A snail fell into a hole 30m deep. it starts to climb up. Every day it climbs 3m and every night it slides down 2m. after how many days will the snail emerge from the hole?

OpenStudy (anonymous):

I will takes only 28 days...

OpenStudy (anonymous):

in 27 days it will climb 27 and then on 28th day he will climb till 30 m

OpenStudy (anonymous):

is it right/??

OpenStudy (anonymous):

i can not get it myself, just need help

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