In the preceding diagram of circle C, chord intersects chord at W. If XW = z + 12, UW = z + 3, and WV = z, what is the length of ? (1)XW = 6WY (2)WY = 3

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<img alt='images' src='https://www.fatskills.com/images3/gmat/f0277-01.jpg'><br>In the preceding diagram of circle <em>C</em>, chord <img alt='images' src='https://www.fatskills.com/images3/gmat/c0276-01.jpg'/> intersects chord <img alt='images' src='https://www.fatskills.com/images3/gmat/c0277-02.jpg'/> at <em>W</em>. If <em>XW</em> = <em>z</em> + 12, <em>UW</em> = <em>z</em> + 3, and <em>WV</em> = <em>z</em>, what is the length of <img alt='images' src='https://www.fatskills.com/images3/gmat/c0276-01.jpg'/>? (1)<em>XW</em> = 6<em>WY</em> (2)<em>WY</em> = 3






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