document.write( "Question 1194746: The average age of a family of eight is 30 years. The average age of the six children is 19 years. If the mother is four years younger than the father. Calculate the age of the father. \n" ); document.write( "

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\n" ); document.write( "The average age of a family of eight is 30 years. The average age of the six children is 19 years. If the mother is four years younger than the father. Calculate the age of the father.
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With average age of the 8 members being 30, ages of all 8 members TOTAL 8(30) = 240 years\r\n" );
document.write( "With average age of the 6 children being 19, the ages of ALL 6 children TOTAL 6(19) = 114 years\r\n" );
document.write( "Therefore, mother's and father's ages TOTAL 240 - 114 = 126 years\r\n" );
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document.write( "Let father's age be F\r\n" );
document.write( "Then mother's is, F - 4\r\n" );
document.write( "Since mother's and father's ages sum to 126 years, we get: F + F - 4 = 126\r\n" );
document.write( "2F = 130\r\n" );
document.write( "Father, or

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