document.write( "Question 1151113: If the father's age in 3 years will be twice the son's age 4 years ago, and if the sum of their ages now is 106, how old is the father now? \n" ); document.write( "

Algebra.Com's Answer #772742 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "If the father's age in 3 years will be twice the son's age 4 years ago, and if the sum of their ages now is 106, how old is the father now?
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Let father's age be F, ad son's, S
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document.write( "Then we get: F + 3 = 2(S - 4)_____F - 2S = - 11 ---- eq (i)
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document.write( "Also, F + S = 106____S = 106 - F ------ eq (ii)
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document.write( "F - 2(106 - F) = - 11 ----- Substituting 106 - F for S in eq (i)
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document.write( "F - 212 + 2F = - 11
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document.write( "3F = 201
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document.write( "F, or father is:  \n" );
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