document.write( "Question 849093: Hello-
\n" ); document.write( "I have a question that I solved but I am not sure if I got the correct answer. The problem is: If two painters can finish painting a house in 7 hours, and it takes the slower painter 19 hours by himself, how long would it take the faster painter to finish the house.
\n" ); document.write( "Here is what I did: Let f=faster painter hours and s=slower painter hours. I have 1/f + 1/s = 1/7. But 1/s = 1/19. So 1/f = 1/7 - 1/19 = 12/133. So f= 133/12 which is about 11 hours. Is that correct? If not, please tell me where I went wrong.
\n" ); document.write( "Thank you very much! \n" ); document.write( "
Algebra.Com's Answer #511370 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
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document.write( "Hi,
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document.write( "1/f = 1/7 - 1/19 = 12/133  Yes, good Work
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document.write( "And  1/f = 133/12 = 11 1⁄12 hr  0r 11hr and 5min \n" );
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