document.write( "Question 827893: working separately, 4 students can do 80 math problems in one hour. at this rate, how many math problems can 8 students do in 3 hours? \n" ); document.write( "
Algebra.Com's Answer #501036 by richwmiller(17219)\"\" \"About 
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4*1=4
\n" ); document.write( "4 man hours for 80 problems
\n" ); document.write( "20 problems per man hour
\n" ); document.write( "3*8=24 man hours
\n" ); document.write( "24*20=480 problems\r
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