A circular swimming pool is surrounded by a concrete wall 4 ft. wide. If the are

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A circular swimming pool is surrounded by a concrete wall 4 ft. wide. If the area of the concrete wall surrounding the pool is $$\frac{{11}}{{25}}$$ that of the pool, then the radius of the pool is :

Options:

A . 8 ft

B . 16 ft

C . 20 ft

D . 30 ft

Answer: Option C

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