Human: There are three trees in the town square. The tallest tree is 150 feet tall. The middle height tree is 2/3 the height of the tallest tree. The shortest tree is half the size of the middle tree. How tall is the shortest tree? Assistant: 
How tall is the tallest tree? ** Tallest Tree: <<150=150>>150 feet
How tall is the middle tree? ** Middle Tree:150(2/3)=300/3=100 feet
How tall is the shortest tree? ** Shortest Tree:100/2=<<100/2=50>>50 feet
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