900 boys and 500 girls appeared in an examination which 70% off
girls passed out in the examination. Find the total percentage of students who did not pass
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Answer:
No. Of Boys=100-70=30%
No. of Boys=900×30/100=270.
No. of girls=500×70/100=350.
Total Number Of Students=900+500=1400
Number of passed students=270+350=620
Number of failed students=1400-620=780.
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