zad 1
Cenę spodni podwyższono z 75 zł na 80 zł. O ile procent podwyższono cenę spodni?
(80zł-75zł)/75zł *100% = 5zł/75zł*100% = 1/15*100% = 100/15% = 6i2/3%
75zł--100%
80zł--x%
80x100
--------- =5%
75
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(80zł-75zł)/75zł *100% = 5zł/75zł*100% = 1/15*100% = 100/15% = 6i2/3%
75zł--100%
80zł--x%
80x100
--------- =5%
75