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12% z X = 42
15% z X = 25
120% z X = 60
95% z X =145
jakimi liczbami bedą X
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Odpowiedź :

12% z x = 42 | :0,12
x = 350

15% z x = 25 | :0,15
x = 166 i 2/3

120% z x = 60 | :1,2
x = 50

95% z x = 145 |:0,95
x = 152,6315789473684