SOLUTION: At a certain time of the day, a vertical yardstick casts a 15-inch shadow.What is the height in feet of a flagpole that casts a shadow 20 feet long at the same time of the day?

Question 310281: At a certain time of the day, a vertical yardstick casts a 15-inch shadow.What is
the height in feet of a flagpole that casts a shadow 20 feet long at the same time
of the day?
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
Use a ratio
You know that a yardstick is 3 feet long.
Also the yardstick shadow is given in inches, and the flagpole shadow is given in feet. We need to convert inches to feet.
The yardstick shadow is 15/12 feet
So

The flagpole is 48 feet tall
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