Out of 8000 candidates 60% were boys. If 80 % of the boys and 90% of the girls passed the exam, find the number of candidates who failed
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Total Candidates =8000.
60% were boys
8000×60/100=4800 Boys
Remaining 40% were Girls
8000-4800=3200 Girls
Condition-80% Boys And 90% girls passed the exam
80% of total boys =4800×80/100=3840Boys Passed
90% of total girls= 3200×90/100=2880 Girls
The no. of Candidates who failed in exam
Boys = 4800-3840=960 Boys
Girls= 3200-2880= 320 Girls
Total Candidates= 960+320=1280 Candidates
60% were boys
8000×60/100=4800 Boys
Remaining 40% were Girls
8000-4800=3200 Girls
Condition-80% Boys And 90% girls passed the exam
80% of total boys =4800×80/100=3840Boys Passed
90% of total girls= 3200×90/100=2880 Girls
The no. of Candidates who failed in exam
Boys = 4800-3840=960 Boys
Girls= 3200-2880= 320 Girls
Total Candidates= 960+320=1280 Candidates
ASHOKPramanik:
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