document.write( "Question 1179433: a coin purse contains four 1-peso coins, five 5- peso coin and six 10-peso coin. another coin purse contains four 1-peso coin five 5-peso coin and three 10-peso coins. if a coin is taken from one of the two coin purses at random, what is the probability that it is a 5-peso coin? with solutions please. thank you. \n" ); document.write( "
Algebra.Com's Answer #808988 by ikleyn(52781)\"\" \"About 
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\n" ); document.write( "a coin purse contains four 1-peso coins, five 5-peso coins and six 10-peso coins.
\n" ); document.write( "another coin purse contains four 1-peso coins, five 5-peso coins and three 10-peso coins.
\n" ); document.write( "if a coin is taken from one of the two coin purses at random,
\n" ); document.write( "what is the probability that it is a 5-peso coin? with solutions please. thank you.
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document.write( "It is with the probability  \"1%2F2\"  the coin is from the 1st or from the 2nd purse.\r\n" );
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document.write( "If the coin is from the 1st purse, then it is the probability  \"5%2F%284%2B5%2B6%29\" = \"5%2F15\" = \"1%2F3\"  that the coin is  a  5-peso.\r\n" );
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document.write( "If the coin is from the 2nd purse, then it is the probability  \"5%2F%284%2B5%2B3%29\" = \"5%2F12\"  that the coin is  a  5-peso.\r\n" );
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document.write( "THEREFORE, the probability under the problem's question is\r\n" );
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document.write( "    P = \"%281%2F2%29%2A%281%2F3%29\" + \"%281%2F2%29%2A%285%2F12%29\" = \"1%2F6+%2B+5%2F24\" = \"4%2F24+%2B+5%2F24\" = \"9%2F24\" = \"3%2F8\".    ANSWER\r\n" );
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