SOLUTION: A fence post 5ft high casts a shadow 6ft long. At the same time the shadow of of a tower is 30 ft long. How high is the tower

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Question 309540: A fence post 5ft high casts a shadow 6ft long. At the same time the shadow of of a tower is 30 ft long. How high is the tower
Answer by alicealc(293) About Me  (Show Source):
You can put this solution on YOUR website!
tower's height = t
the ratio of height and shadow's length for the two objects should be the same, so:
5/6 = t/30
5 * 30 = 6t
150 = 6t
t = 150/6 = 25

so the tower is 25 ft high