document.write( "Question 978044: If you have a box of 12 marbles of 3 different colors, blue, green and red, 4
\n" ); document.write( "blue, 4 green, 4 red. How many ways can you draw two balls of the same color?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #599599 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
If you have a box of 12 marbles of 3 different colors, blue, green and red, 4
\n" ); document.write( "blue, 4 green, 4 red. How many ways can you draw two balls of the same color?\r
\n" ); document.write( "\n" ); document.write( "
\r\n" );
document.write( "4C2+4C2+4C2 = 3*(4C2) = 3*(4*3)/(2*1) = 3*12/2 = 3*6 = 18\r\n" );
document.write( "\r\n" );
document.write( " 1. (b1,b2) \r\n" );
document.write( " 2. (b1,b3)\r\n" );
document.write( " 3. (b1,b4)\r\n" );
document.write( " 4. (b2,b3)\r\n" );
document.write( " 5. (b2,b4)\r\n" );
document.write( " 6. (b3,b4)\r\n" );
document.write( " 7. (g1,g2)\r\n" );
document.write( " 8. (g1,g3)\r\n" );
document.write( " 9. (g1,g4)\r\n" );
document.write( "10. (g2,g3)\r\n" );
document.write( "11. (g2,g4)\r\n" );
document.write( "12. (g3,g4)\r\n" );
document.write( "13. (r1,r2)\r\n" );
document.write( "14. (r1,r3)\r\n" );
document.write( "15. (r1,r4)\r\n" );
document.write( "16. (r2,r3)\r\n" );
document.write( "17. (r2,r4)\r\n" );
document.write( "18. (r3,r4)\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );