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In 2004, consumers in Dexter consumed only books and pens.
The prices and quantities for 2004 and 2005 are listed in the following table.
The reference base period for Dexter's CPI is 2004.
What is the inflation rate in 2005?
2004 2005
┌───┬──┬──┬┬──┬──┐
│Item │ Q │ P ││ Q │ P │
├───┼──┼──┼┼──┼──┤
│BOOKS │10 │$30 ││ 8 │ $50│
├───┼──┼──┼┼──┼──┤
│PENS │20 │$1 ││ 15 │ $2 │
└───┴──┴──┴┴──┴──┘
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※ apriLti:轉錄至看板 TransEcoAcc 06/12 12:07