Answer:
6 stories
Explanation:
1 hour = 60 minutes
We can use a ratio to solve
1/2 story x story
------------- = ------------
5 minutes 60 minutes
Using cross products
1/2 * 60 = 5 * x
30 = 5x
Divide each side by 5
30/5 = 5x/5
6 =x
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