Posted by Rue Ann on Wednesday, February 1, 2012 at 11:25am.
A tree cast a 24 foot shadow at the same time a fence post 5 feet high cast a 4 foot shadow. How tall is the tree?

math  Ms. Sue, Wednesday, February 1, 2012 at 11:35am
Cross multiply and solve for x.
5/4 = x/24

math  ThankGod, Wednesday, February 1, 2012 at 11:45am
5/4*x/24 4x=120 divide through by the coefficient of x,which is 4.120/4=30 therefore x=30
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