document.write( "Question 1145585: The ratio of the present ages of Kwasi and Yaw is 2:9. Four years ago the sum of their ages was 47. How old is Yaw now \n" ); document.write( "

Algebra.Com's Answer #766794 by ikleyn(52814) $\"\"$ $\"About$

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document.write( "Let Y be the Yaw age.\r\n" );
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document.write( "Then from the condition, Kwasi's age is  (47 + 4 + 4 - Y) = 55 - Y.\r\n" );
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document.write( "From the condition, you have this proportion\r\n" );
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document.write( "     = .\r\n" );
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document.write( "Hence,\r\n" );
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document.write( "    9*(55 - Y) = 2Y\r\n" );
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document.write( "    9*55- 9Y = 2Y\r\n" );
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document.write( "    9*55 = 2Y + 9Y = 11Y.\r\n" );
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document.write( "Hence,  Y =  = 9*5 = 45 is the Yaw's age now. \r\n" );
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