document.write( "Question 1204014: A bag contains three black balls,four white balls and five red balls.Three balls are removed without replacement.What is the probability of obtaining; (a) One of each colour.(b) At least two red balls \n" ); document.write( "
Algebra.Com's Answer #840022 by ikleyn(52787)\"\" \"About 
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\n" ); document.write( "A bag contains three black balls,four white balls and five red balls.
\n" ); document.write( "Three balls are removed without replacement.
\n" ); document.write( "What is the probability of obtaining;
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\n" ); document.write( "(b) At least two red balls
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document.write( "(a)  P = \"%28C%5B3%5D%5E1%2AC%5B4%5D%5E1%2AC%5B5%5D%5E1%29%2FC%5B3%2B4%2B5%5D%5E3\" = \"%283%2A4%2A5%29%2FC%5B12%5D%5E3\" = \"60%2F220\" = \"3%2F11\".    ANSWER\r\n" );
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document.write( "(b)  P = \"%28C%5B5%5D%5E2%2AC%5B3%2B4%5D%5E1+%2B+C%5B5%5D%5E3%29%2FC%5B12%5D%5E3\" = \"%2810%2A7%2B10%29%2F220\" = \"80%2F220\" = \"4%2F11\".    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "To see many other similar  (and different)  problems solved,  look into the lesson\r
\n" ); document.write( "\n" ); document.write( "    - Elementary Probability problems related to combinations \r
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\n" ); document.write( "\n" ); document.write( "Learn the subject from there.\r
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