document.write( "Question 636696: in a certain class 40percent of the student are girls and 20 percent of the girls wear glasses.what percentage of the children in the class are girls who wear glasses? \n" ); document.write( "
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in a certain class 40percent of the student are girls and 20 percent of the girls wear glasses.what percentage of the children in the class are girls who wear glasses?
\n" ); document.write( "ans:-
\n" ); document.write( "let there be 100 students
\n" ); document.write( "so no of girls=40
\n" ); document.write( "20% of girls=20%of40=20*40/100=8 wear glass
\n" ); document.write( "means 8 out of 100 students wear glass
\n" ); document.write( "i.e 8%students wear glass ans
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