The ratio of boys and girls in a class is 5:3. If 16% of boys and 8% of girls failed in an
examination, then find the percentage of passed students.
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Answer:
Step-by-step explanation:
Boys ratio =5/8
Girls ratio =3/8
Boys pass percentage = 100 - 16 = 84%
Girls pass percentage = 100-8 = 92%
Total pass percentage = 85/100*5/8+92/100*3/8
= 84*5+92*3/800
= 420+276/800
= 696/800*100
= 87%
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