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A tree with a height of 12 yards casts a shadow that is 33 yards long at a certain time of day. At the same time, another tree nearby casts a shadow that

is 20 yards long. How tall is the second tree?


Let the height of tree be x
From the equation   12/33=x/20
                           ⇒ x=12×20/33
                                 =80/11=7.3 yard
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