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A house has a large window made of 15 equal-sized pieces of glass, each the same size and shape. There are 3 pieces of glass that are cracked. If a rock thrown by a lawn mower hits the window, what is the probability that the rock hits a piece of glass that is cracked?

 Mar 23, 2018

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Since you have 3 pieces out of 15, then the probability is:

3 / 15 = 1 / 5

 Mar 23, 2018
 #1
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Best Answer

Since you have 3 pieces out of 15, then the probability is:

3 / 15 = 1 / 5

Guest Mar 23, 2018

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