document.write( "Question 1188646: Maria can weed 1,000 m² of cogonal farm surface in 40 hours, while her brother, Bryant, can do the same amount of work in 20 hours. If they work together, how long will it take them to weed one hectare (10,000 m2) of cogonal land surface? \n" ); document.write( "
Algebra.Com's Answer #819923 by ikleyn(52792)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "It is, actually, pure Arithmetic problem.\r
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\n" ); document.write( "\n" ); document.write( "It can be solved without Algebra and without using equations.\r
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\n" ); document.write( "\n" ); document.write( "It is actually, arithmetic problem for very young students/children of 4-th grade level, \r
\n" ); document.write( "\n" ); document.write( "who just know arithmetic, but are not familiar with Algebra and with equations.\r
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\n" ); document.write( "\n" ); document.write( "Therefore, a preferable method to solve it is using Arithmetic only, without Algebra.\r
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\n" ); document.write( "\n" ); document.write( "It is how this problem is intended and designed, and how it is expected to be solved.\r
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