document.write( "Question 1118700: Please solve this question
\n" ); document.write( "Ben is 3 years older than his sister and a third of the age of his mother. His father is 4 years older than his mother and four times the age of his sister. How old is Ben ? ---------
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Algebra.Com's Answer #734106 by MathTherapy(10556) $\"\"$ $\"About$

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Please solve this question
\n" ); document.write( "Ben is 3 years older than his sister and a third of the age of his mother. His father is 4 years older than his mother and four times the age of his sister. How old is Ben ? ---------
\n" ); document.write( "Regards
\n" ); document.write( "

Let Ben’s age be B
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document.write( "Then sister's age is: B – 3, and mother’s is: 3B
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document.write( "Father's is: 3B + 4, and also, 4(B – 3), or 4B - 12
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document.write( "We then have: 3B + 4 = 4B – 12
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document.write( "3B – 4B = - 12 – 4
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document.write( "- B = - 16
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document.write( "B, or Ben is:  \n" );
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