AlgebraDifficulty 2.0Find the answerCEMC Cayley · Canada · 2004
21+2221+2322+⋯+2200322002+2200422003 is equal to (A) 1002 (B) 501 (C) 220041 (D) 2004 (E) 220042004
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Source: CEMC, University of Waterloo,
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