document.write( "Question 1185170: Kofi is five times as old as kwaku. In ten years time kofi will be three times as old as kwaku. How old are the boys.
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Algebra.Com's Answer #815936 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "Kofi is five times as old as kwaku. In ten years time kofi will be three times as old as kwaku.
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document.write( "Let Kwaku age be x years.\r\n" );
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document.write( "Then Kofi age is 5x years.\r\n" );
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document.write( "In ten years Kofi's age will be  5x+10  years;  Kwaku age will be (x+10) years.\r\n" );
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document.write( "From the condition, we have THIS equation\r\n" );
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document.write( "    5x + 10 = 3*(x+10)\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    5x + 10 = 3x + 30\r\n" );
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document.write( "    5x - 3x = 30 - 10\r\n" );
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document.write( "      2x    =    20\r\n" );
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document.write( "       x    =    20/2 = 10.\r\n" );
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document.write( "Thus Kwaku's age is 10 years.   Kofi's age is 5*10 = 50 years.      ANSWER\r\n" );
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It is hardly possible to consider 50-years old Kofi as a boy . . .

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