document.write( "Question 926444: 40. Michael’s age is seven-tenths of Richard’s age. In four years Michael’s age will be eight-elevenths of Richard’s age. How old is Michael now?
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\n" ); document.write( "40. Michael’s age is seven-tenths of Richard’s age. In four years Michael’s age will be eight-elevenths of Richard’s age. How old is Michael now?
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document.write( "Let Richard's current age, be R
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document.write( "Then Michael's current age = , or 
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document.write( "Therefore, we get: 
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document.write( "77R - 80R = - 440 + 320 ------ Multiplying by LCD, 10
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document.write( "- 3R = - 120
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document.write( "R, or Richard's current age = , or 40 years-old
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document.write( "Michael's current age: , or , or  years-old \n" );
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