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A snailis trying to climb up a cup left by some students that littered.Each hour the snail slithers up 2`` but when he is tired he sleeps and slides 1``.

How many hours until he reaches the top of the cup with a height of 10 is this an integer question?

  • math -

    Problems of this kind can be readily solved by the simple case of 2" in which case the snail gets out in 1 hour.
    How much more time it takes him to climb an extra inch? Extra 8 inches?

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