document.write( "Question 1064128: pita has 12 coins in her bag.
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Algebra.Com's Answer #679161 by Edwin McCravy(20065)\"\" \"About 
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document.write( "She must have 2 £1 coins and 1 50p coin.\r\n" );
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document.write( "She can choose the 2 £1 coins 3C2 = 3 ways.\r\n" );
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document.write( "For each of those 3 ways she can choose the\r\n" );
document.write( "50p coin 9C1 or 9 ways.\r\n" );
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document.write( "That's 3×9=27 ways to get £2.50.\r\n" );
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document.write( "She can choose any 3 coins in 12C3 = 220 ways.\r\n" );
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document.write( "The desired probability is 27 ways out of \r\n" );
document.write( "220 ways,\r\n" );
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document.write( "or 27/220, or 13.5% of the time.\r\n" );
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document.write( "Edwin
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