document.write( "Question 980497: 1500 students have food for 24 days. if 500 other students joined and 20% food is also reduced to every students. how much longer will the food last? \n" ); document.write( "

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1500 students have food for 24 days. if 500 other students joined and 20% food is also reduced to every students. how much longer will the food last
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\n" ); document.write( "Find how many normal food-days available
\n" ); document.write( "1500 * 24 = 36000 food-days
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\n" ); document.write( "If 500 join there are 2000 students, students get 80% of the normal food (-20%)
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\n" ); document.write( "let d = time food will last under these conditions
\n" ); document.write( "2000 * .8 * d = 36000
\n" ); document.write( "1600d = 36000
\n" ); document.write( "d = 36000/1600
\n" ); document.write( "d = 22.5 days, it won't last longer, 1.5 days less \n" ); document.write( "

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