Question

Out of 8000 candidates,60% were boys. if 80% of the boys and 90%of the girls passed the exam, find the no. of candidates who failed

Answer 1

Your answer

Boys Gave Exam = 60% of 8000 = 4800

Girls Gave Exam = 8000 - 4800 = 3200

Pass Boys = 80% of 4800 = 3840

$hence \: 3840 \: boys \: passed$

Pass Girls = 90% of 3200 = 2880

$hence \: 2880 \: girls \: passed$

$total \: pass \: candidates$

$3840 + 2880 = 6720$
Hence 6720 Candidates passed out of 8000

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