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Three rectangles are in a row, as shown below. The first and second............what is the area of the second rectangle?

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Three rectangles are in a row, as shown below.
The first and second rectangles have a combined width equal to 7 m.
The second and third have a combined width equal to 8 m.
If the first rectangle has an area equal to 20 m2 and the third has an area equal to 25 m2, what is the area of the second rectangle?
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posted Jun 29 by Brijesh Talwar

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