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![[Post New]](/templates/default/images/icon_minipost_new.gif) 26 Feb 2008 16:30:47 IST
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i think answer is printed wrong...its gotta be 8/15...we can confrm by conjugate case ttoo..
bw+wb=2*10/90=20/90
bb=5*4/90=20/90
ww=2*1/90=2/90
tot=42/90=7/15
hence conj case=1-7/15=8/15
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