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75 - 12,5 %
x - 100 %
7500 = 12,5x / :12,5
x=600
x uczniów ---> 100 %
75 1250
--- = -----
x 10000
750000=1250x | :1250
600 = x
W szkole uczy sie 600 uczniów
75--------12,5%
x----------100%
x= 75*100% / :12,5%
x=7500%:12,5%
x=600