A circle with a radius of 4 feet is cut from a piece of

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by M7MBA » Fri Apr 05, 2019 11:45 am

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A circle with a radius of 4 feet is cut from a piece of sheet metal with uniform thickness. The circle weighs 20 pounds. If another circle is cut from the same sheet and weighs 60 pounds, then its radius is closest to which of the following?

A. 6 feet
B. 7 feet
C. 8 feet
D. 9 feet
E. 10 feet

[spoiler]OA=B[/spoiler]

Source: Manhattan GMAT

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Source: Beat The GMAT — Problem Solving | Fri Apr 05, 2019 11:45 am

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