Pan "x" ma 100 zł a pan "y" 80 zł. a) O ile % więcej pieniędzy ma pan "y" niż pan "x" ? b) O ile % więcej pieniędzy ma pan "x" niż pan "y" ?
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a) 100%-100zl
z-80zl
z=80%
o 20%
b)100%-80zl
h-100zl
h=125%
o 25%