document.write( "Question 1108447: In a school, 45% the students are boys and the rest are girls.If girls number is 77,what is the strength of the school ? \n" ); document.write( "
Algebra.Com's Answer #723446 by greenestamps(13208)\"\" \"About 
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\n" ); document.write( "You can solve this using a proportion.

\n" ); document.write( "The boys are 45%, so the girls are 55%. Since the number of girls is 77, if x is the number of boys then
\n" ); document.write( "\"45%3A55+=+x%3A77\"
\n" ); document.write( "\"9%3A11+=+x%3A77\"
\n" ); document.write( "\"x+=+63\"

\n" ); document.write( "So there are 63 boys; then the total number of students is 77+63 = 140.

\n" ); document.write( "Alternatively, you could just say since 55% of the total number of students (the girls) is 77, if x is the total number of students then
\n" ); document.write( "\"0.55x+=+77\"
\n" ); document.write( "\"x+=+77%2F0.55+=+140\"
\n" ); document.write( "
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