document.write( "Question 698256: Tom can sort 280 nails in 2 hours and jerry can sort 120 nails in 3 hours how long will it take them to both sort 700 nails \n" ); document.write( "

Algebra.Com's Answer #430566 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
Tom can sort 280 nails in 2 hours and jerry can sort 120 nails in 3 hours
\n" ); document.write( " how long will it take them to both sort 700 nails
\n" ); document.write( ":
\n" ); document.write( "Find the no. of nails per hr, each can sort
\n" ); document.write( "Tom: 280/2 = 140 per hr
\n" ); document.write( "Jer: 120/3 = 40 per hr
\n" ); document.write( ":
\n" ); document.write( "Let t = time (in hrs) required for both to sort 700 nails
\n" ); document.write( "140t + 40t = 700
\n" ); document.write( "180t = 700
\n" ); document.write( "t = 700/180
\n" ); document.write( "t = 3.89 hrs or 3 + .89(60) = 3 hrs 53 min \n" ); document.write( "

\n" );