Difference between revisions of "2008 AMC 8 Problems/Problem 12"

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==Problem 12==
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==Problem==
 
A ball is dropped from a height of <math>3</math> meters. On its first bounce it rises to a height of <math>2</math> meters. It keeps falling and bouncing to <math>\frac{2}{3}</math> of the height it reached in the previous bounce. On which bounce will it not rise to a height of <math>0.5</math> meters?
 
A ball is dropped from a height of <math>3</math> meters. On its first bounce it rises to a height of <math>2</math> meters. It keeps falling and bouncing to <math>\frac{2}{3}</math> of the height it reached in the previous bounce. On which bounce will it not rise to a height of <math>0.5</math> meters?
  

Revision as of 12:05, 9 December 2012

Problem

A ball is dropped from a height of $3$ meters. On its first bounce it rises to a height of $2$ meters. It keeps falling and bouncing to $\frac{2}{3}$ of the height it reached in the previous bounce. On which bounce will it not rise to a height of $0.5$ meters?

$\textbf{(A)}\  3 \qquad \textbf{(B)}\  4 \qquad \textbf{(C)}\ 5 \qquad \textbf{(D)}\ 6 \qquad \textbf{(E)}\ 7$

See Also

2008 AMC 8 (ProblemsAnswer KeyResources)
Preceded by
Problem 11
Followed by
Problem 13
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
All AJHSME/AMC 8 Problems and Solutions