document.write( "Question 863009: Helping my child do her math and could use some help.\r
\n" ); document.write( "\n" ); document.write( "Twin brothers, person A and person B, can mow their grandparents lawn together in 42 minutes. Person A could mow the lawn by himself in 13 minutes less time than person B. How long does it take each person to mow the lawn by himself.\r
\n" ); document.write( "\n" ); document.write( "Many thanks in advance,
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Algebra.Com's Answer #520134 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
1/B+1/(B-13)=1/42
\n" ); document.write( "A=B-13
\n" ); document.write( "B=91
\n" ); document.write( "A=78\r
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