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x ------ 100%
60 ----- 18%
18x = 6000 | 18
x = 333,3 (przybliżenie) 333
B)
72 ----- 100%
53 ------- x
72x = 5300 | 72
x = 73,611
w przybliżeniu 74%
C)
164 * 0,26 = 42,64 (w zaokragleniu 43)