document.write( "Question 479928: In the sequence 123, 133, 113, 123, what is the next number? \n" ); document.write( "
Algebra.Com's Answer #328777 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "given:\r
\n" ); document.write( "\n" ); document.write( "the sequence 123, 133, 113, 123\r
\n" ); document.write( "\n" ); document.write( "look at the numbers in your sequence\r
\n" ); document.write( "\n" ); document.write( "the difference between first one and second one is +10...123+10=133 \r
\n" ); document.write( "\n" ); document.write( "the difference between second one and third one is -20...133-20=113 \r
\n" ); document.write( "\n" ); document.write( "the difference between third one and fourth one is +10...113+10=123\r
\n" ); document.write( "\n" ); document.write( "following this pattern, next number in this sequence will be 123 -20=103
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