document.write( "Question 3178: A family spend 1/3 of their income on rent, 1/4 on food, and 1/5 on clothes. If they are left with £39 each week find:
\n" ); document.write( "- total fraction spent on food, rent, clothes
\n" ); document.write( "- the fraction which is left
\n" ); document.write( "- their weekly income\r
\n" ); document.write( "\n" ); document.write( " Please can you help because my answer does not match with the answer in text book Thanks
\n" ); document.write( "

Algebra.Com's Answer #1360 by xcentaur(357)\"\" \"About 
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Let total income be x\r
\n" ); document.write( "\n" ); document.write( "Then income spent on:\r
\n" ); document.write( "\n" ); document.write( ":rent=x/3
\n" ); document.write( ":food=x/4
\n" ); document.write( ":clothes:x/5\r
\n" ); document.write( "\n" ); document.write( "Total fraction spent
\n" ); document.write( "=\"x%2F3%2Bx%2F4%2Bx%2F5\"
\n" ); document.write( "=\"%2820x%2B15x%2B12x%29%2F60\"
\n" ); document.write( "=47/60x\r
\n" ); document.write( "\n" ); document.write( "Therefore,fraction which is left
\n" ); document.write( "= 13/60x which is equal to 39 pounds\r
\n" ); document.write( "\n" ); document.write( "Therefore,
\n" ); document.write( "13x=39*60
\n" ); document.write( "x=(39*60)/13
\n" ); document.write( "x=3*60
\n" ); document.write( "

\n" ); document.write( "x=180 pounds (total income)
\n" ); document.write( "


\n" ); document.write( "weekly income of 180 pounds \n" ); document.write( "

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