document.write( "Question 1074951: Matthew can cut the grass in 3 hours working by himself. When Matthew cuts the grass with his younger brother Dino, it takes 2 hours. How long would it take Dino to cut the grass if he worked by himself?
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Algebra.Com's Answer #689622 by jorel1380(3719) $\"\"$ $\"About$

You can put this solution on YOUR website!
If Matthew finishes the job in 3 hours, then he does 1/3rd of the job per hour. Let n be the time it takes Dino to cut the grass by himself. Then:
\n" ); document.write( "1/3 + 1/n= 1/2
\n" ); document.write( "1/n=1/2-1/3=1/6
\n" ); document.write( "So n=6
\n" ); document.write( "Then Dino takes 6 hours to cut the grass by himself. ☺☺☺☺ \n" ); document.write( "

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