GAUSS7 2009 Problem 23

Past Contests GAUSS7 GAUSS (GR. 7) - 2009
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Each time Kim pours water from a jug into a glass, exactly 10\% of the water remaining in the jug is used. What is the minimum number of times that she must pour water into a glass so that less than half the water remains in the jug?

Answer Choices
A. 5
B. 6
C. 7
D. 8
E. 9

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2

C 6 we know how to calculate exponents, right?

  • Yeah! Of course!
  • Yeah, but kind of…
  • Ehh, not my thing. I’m not good.
  • What are exponents again?
  • Goo goo ga gaaaa
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