Math, asked by shyampatel8706, 1 year ago

5% of the candisdates in an examinafion were girls 75% of boys and 62.5%girls passed and 342 girls failed how many boys failed

Answers

Answered by indusinghkancha
2
%of girls passed=62.5%
:.%of girls failed=100-62.5=37.5%
Now 37.5% of x=342
:.x=342/375×10×100=912
If 912=5% of x
:.912/5×100=x
X=18240
Now %of boys=100-5=95%
Now number of boys=18240-912=17328
Now %of boys passed=75%
:.%of boys failed=100-75=25%
Now 25%of17328=25/100×17328=4332
:.4332boys failed(ANSWER)
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