document.write( "Question 294696: In school B, 10% students failed in science, 20% failed in commerce and 30% failed in arts. What is the percentage of failures in school B?\r
\n" ); document.write( "\n" ); document.write( "(a)15 (b) 25 (c) 12 (d) 12 1/2 (e) 17\r
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Algebra.Com's Answer #212471 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
Are they the same people who failed in each course?
\n" ); document.write( "Do all the students take all of those courses?
\n" ); document.write( "Are there other courses?
\n" ); document.write( "And how do you know?
\n" ); document.write( "Let's say there are 100 students
\n" ); document.write( "10 failed science
\n" ); document.write( "20 failed commerce
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\n" ); document.write( "That is 60 failures out of 100. 60/100 3/5
\n" ); document.write( "or is it 60 out of 300. 60/300= 20/100=1/5
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