document.write( "Question 925255: if 1 man completes a task in 12 hours and the same task is done by another person in 18 hours soo how much time will be taken if both work simultaneously \n" ); document.write( "

Algebra.Com's Answer #561374 by ewatrrr(24785) $\"\"$ $\"About$

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Work/one hour Used for Set UP
\n" ); document.write( " $\"1%2F12+%2B+1%2F18+=+1%2Fx\"$ |Multiplying thru by 36x so as all denominators = 1
\n" ); document.write( "3x + 2x = 36
\n" ); document.write( "5x = 36
\n" ); document.write( "x = 36/5
\n" ); document.write( "x = 7.2hr 0r 7hr and 12min
\n" ); document.write( "And...checking
\n" ); document.write( " $\"1%2F12+%2B+1%2F18+=+1%2F%2836%2F5%29\"$
\n" ); document.write( " $\"1%2F12+%2B+1%2F18+=+5%2F36\"$
\n" ); document.write( " $\"3%2F36+%2B+2%2F36+=+5%2F36\"$ \n" ); document.write( "

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