1.

The area of the circle with radius Y is W. The difference between the areas of the bigger circle (with radius Y) and that of the smaller circle (with radiusX) is W'. So x/y is equal to1). $\sqrt{1-\frac{w^{-1}}{w}}$2). $\sqrt{1+\frac{w^{-1}}{w}}$3). $\sqrt{1+\frac{w}{w^{-1}}}$4). $\sqrt{1-\frac{w}{w^{-1}}}$

Answer»

This question was asked some where in previous YEAR PAPERS of ssc, and correct ANSWER was option 1



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