document.write( "Question 983065: Find the sum : 2 4 6 .... 200. \n" ); document.write( "
Algebra.Com's Answer #603868 by Boreal(15235)\"\" \"About 
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1+2+3+...+100= n(n+1)/2=100(101)/2=5050
\n" ); document.write( "2+4+6+...+200 is the same thing, only every number is doubled.
\n" ); document.write( "5050*2=10,100
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