document.write( "Question 1200739: If the Fathers age is 5 times his son's age. 4 years back the father was 9 times older than son. what is the fathers present age.? \n" ); document.write( "
Algebra.Com's Answer #834947 by ikleyn(52794)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "In formal English and in Math problems written in English, such combinations of words \r
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\n" ); document.write( "\n" ); document.write( "like \"9 times older than\" and other similar combinations are NOT USED and are PROHIBITED to use, \r
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\n" ); document.write( "\n" ); document.write( "because they are AMBIGUOUS and provoke misunderstanding.
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\n" ); document.write( "\n" ); document.write( "When a Math composer uses such a combinations of words, it is a 100% sign \r
\n" ); document.write( "\n" ); document.write( "that this person does not know (is unfamiliar with) the rules of writing Math problems in English.\r
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\n" ); document.write( "\n" ); document.write( "It is a 100% sign that this person did not open and did not read a standard Math textbook in English.\r
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