document.write( "Question 1107151: Ali's father was five times as old as Ali 7 1/2 years ago. After 7 1/2 years father will be twice as old as Ali. What are their present ages. \n" ); document.write( "

Algebra.Com's Answer #722127 by ikleyn(52800) $\"\"$ $\"About$

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document.write( "There is a common view to (and common understanding of) the age problems:  They always must go with integer  numbers: the input \r\n" );
document.write( "consists of integer numbers, AND the output, the resulting answer MUST be integer number.\r\n" );
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document.write( "All other formulations to age problems, even although they use the terms \"age\", \"year\" and so on, are commonly considered as DEFECTIVE.\r\n" );
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