document.write( "Question 787221: Jamie and Ross are brother and sister. Jamie has the same number of brothers as dusters. Rosa has twice as many brothers and sisters. How many boys and girls are in the family? \n" ); document.write( "
Algebra.Com's Answer #478202 by ankor@dixie-net.com(22740)\"\" \"About 
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Jamie and Rosa are brother and sister.
\n" ); document.write( "b = no. of boys; g = no. of girls
\n" ); document.write( " Jamie has the same number of brothers as dusters.
\n" ); document.write( "b - 1 = g
\n" ); document.write( "b = g + 1
\n" ); document.write( " Rosa has twice as many brothers and sisters.
\n" ); document.write( "b = 2(g-1)
\n" ); document.write( "b = 2g - 2
\n" ); document.write( " How many boys and girls are in the family?
\n" ); document.write( "b = b therefore
\n" ); document.write( "2g - 2 = g + 1
\n" ); document.write( "2g - g = 1 + 2
\n" ); document.write( "g = 3 girls in the family
\n" ); document.write( "then
\n" ); document.write( "b = 3 + 1
\n" ); document.write( "b = 4 boys
\n" ); document.write( ":
\n" ); document.write( "Not sure how many \"dusters\" were involved in this,
\n" ); document.write( "But generally it's the girls that worry about dust isn't it? \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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