document.write( "Question 1039978: 240 students in a hostel had a provision for 30 days. After somedays 80 more students joined the hostel and the provision lasted only for 18 days. After how many days did the students join the hostel ?
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Algebra.Com's Answer #654761 by stanbon(75887)\"\" \"About 
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240 students in a hostel had a provision for 30 days.
\n" ); document.write( "Let \"p\" be the # of provisions::
\n" ); document.write( "p/240 = 30 prov/student
\n" ); document.write( "p = 240*30 = 7200 provisions
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\n" ); document.write( "After some days 80 more students joined the hostel and the provision lasted only for 18 days. After how many days did the students join the hostel ?
\n" ); document.write( "Let the number of days be \"d\"
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\n" ); document.write( "provisions - prov - prov = 0 provisions
\n" ); document.write( "7200 - (d*240) - (18[7200-240d]/320] = 0
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\n" ); document.write( "7200 - 240d - (18/320)7200 + (18/320)(240d) = 0
\n" ); document.write( "7200 - 240d - 405 + 13.5d = 0
\n" ); document.write( "226.5d = 6795
\n" ); document.write( "Ans: d = 30
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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