document.write( "Question 636296: in a class consisting 18 boys 22 girls , one student is absent . the probability that the absent student is a boy \n" );
document.write( "1)9/20 \n" );
document.write( "2)11/20 \n" );
document.write( "3)1/2 \n" );
document.write( "4)1/4 \n" );
document.write( "
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