12 ------ 100%
7,5 ------- X
12X = 100 x 7,5
12X = 750
X = 750 ÷ 12
X = 62,5%
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12 ------ 100%
7,5 ------- X
12X = 100 x 7,5
12X = 750
X = 750 ÷ 12
X = 62,5%