Odpowiedź:
a. stara cena 240zl
nowa cena 180zl
(180/240)•100%=(1800/24)%=75%
odp. nowa cena stanowi 75% starej ceny.
b. stara cena 300 zl
nowa cena 222 zl
(222/300)•100%=(222/3)%=74%
odp. nowa cena stanowi 74% starej ceny.
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Odpowiedź:
a. stara cena 240zl
nowa cena 180zl
(180/240)•100%=(1800/24)%=75%
odp. nowa cena stanowi 75% starej ceny.
b. stara cena 300 zl
nowa cena 222 zl
(222/300)•100%=(222/3)%=74%
odp. nowa cena stanowi 74% starej ceny.