document.write( "Question 1197952: Hi
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document.write( "3/4 of the boys are equal to 1/3 of the girls. What fraction of the pupils are boys. My son son 9/13 textbook solution is 4/13. Who is correct.
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document.write( "Thanks \n" );
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Algebra.Com's Answer #831430 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "For a preliminary analysis using logical reasoning, note that it takes nearly all of the boys to equal less than half of the girls; that means the number of girls is greater. \n" ); document.write( "The other tutor showed a good algebraic solution. Here is a very different solution, using only logical reasoning and basic arithmetic. \n" ); document.write( "Since 3/4 of the number of boys is equal to 1/3 the number of girls, this is one of those strange problems where we want to express those two fractions with like NUMERATORS. \n" ); document.write( "1/3 = 3/9, so 3/4 of the boys is equal to 3/9 of the girls. Then, with the numerators being equal, that says that there are 4 boys for every 9 girls. \n" ); document.write( "So 4/13 of the students are boys and 9/13 of them are girls. \n" ); document.write( " \n" ); document.write( " |