From 40 pupils 12 to study perfectly in all objects How much of excellent students less than in all pupils Find percent of excellent students

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Otlichnikov 12, the others: 40-12=28 28/12=4 Then, excellent students are 4 times less Percent of excellent students: 12/40 ยท 100=30otlichnikov it is less in 40:12=40/12=10/3=3 whole 1/3 Percent 40:100=0,4 12:0,4=30
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