document.write( "Question 1137518: A boy is two years younger than his sister. Three years ago, the sum of their ages was 48. What is the boy's age? \n" ); document.write( "

Algebra.Com's Answer #755429 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "A boy is two years younger than his sister. Three years ago, the sum of their ages was 48. What is the boy's age?
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Let boy's age be B
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document.write( "Then sister's age is B + 2
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document.write( "Since their ages summed to 48, 3 years ago, their ages sum to 48 + 6, or 54, now
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document.write( "We then get: B + B + 2 = 54
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document.write( "2B = 52
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document.write( "Boy's age, or  \n" );
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