document.write( "Question 1014402: Jerry washes his car in 2 hours 15 minutes. His son Timmy can wash the same car in 1 hour 25 minutes. How long it takes if they work togather? \n" ); document.write( "
Algebra.Com's Answer #630712 by MathTherapy(10552)\"\" \"About 
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Jerry washes his car in 2 hours 15 minutes. His son Timmy can wash the same car in 1 hour 25 minutes. How long it takes if they work togather?
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Jerry takes \"2%2615%2F60\", or \"2%261%2F4\" hours to wash car
\n" ); document.write( "Therefore, Jerry can do \"1%2F%282%261%2F4%29\", or \"4%2F9\" of car in 1 hour
\n" ); document.write( "Iimmy takes \"1%2625%2F60\", or \"1%265%2F12\" hours to wash car
\n" ); document.write( "Therefore, Timmy can do \"1%2F%281%265%2F12%29\", or \"12%2F17\" of car in 1 hour
\n" ); document.write( "We then get: \"4%2F9+%2B+12%2F17+=+1%2FT\"
\n" ); document.write( "\"176%2F153+=+1%2FT\"
\n" ); document.write( "176T = 153 ------- Cross-multiplying
\n" ); document.write( "T, or time both take: \"highlight%28highlight_green%28highlight%28153%2F176%29%29%29\" hr, or \"highlight_green%2852.15909091%29\" mins \n" ); document.write( "
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