document.write( "Question 979609: The ratio of boys to girls in a class is 3:5.if there are 8 more girls than boys,how many pupils are there in the class? \n" ); document.write( "

Algebra.Com's Answer #600900 by 428225(90) $\"\"$ $\"About$

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Since you know that for every 3 boys there are 5 girls, you can multiply the numbers by a common number and the ratio will stay the same. I will multiply by 2:
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\n" ); document.write( " $\"3%3A5\"$
\n" ); document.write( " $\"6%3A10\"$
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\n" ); document.write( "In the ratio 6:10 there are 4 more girls than boys, let me try again.
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\n" ); document.write( " $\"6%3A10\"$
\n" ); document.write( " $\"12%3A20\"$
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\n" ); document.write( "There are now 8 more girls than boys, so you know there are 32 pupils in the class. \n" ); document.write( "

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