document.write( "Question 1012854: There are 20 colored pencils in a box: 4 red, 5 green, 10 blue, and 1 black. You pick a pencil without looking. What is the sum of the probability of picking a red pencil and the probability of picking a black pencil? \n" ); document.write( "
Algebra.Com's Answer #628971 by Fombitz(32388)\"\" \"About 
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Picking a red pencil.
\n" ); document.write( "\"P=4%2F20\"
\n" ); document.write( "\"P=1%2F5\"
\n" ); document.write( "Picking a black pencil.
\n" ); document.write( "\"P=1%2F20\"
\n" ); document.write( "The sum of those values is,
\n" ); document.write( "\"S=4%2F20%2B1%2F20=5%2F20=1%2F4\"
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