w chinach zebrano 18 mln ton jabłk a w USA - 5mln ton.o ile procent wiecej jablek zebrano w chiach niz w usa ? o ile proc.mniej jablek zebrano w USA niz w chinach?
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b) [(18mln-5mln)/18mln]*100%= 72,22%
a) [(18mln-5mln)/5mln]*100%= 260%