document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1161548>Question 1161548</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Maria’s age is 20. Her father’s age is 50. In how many years will Maria's father be twice as old as Maria will be?<BR>\n" );
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document.write( "An informal solution, using logical reasoning....<br><BR>\n" );
document.write( "The difference in their ages is 50-20 = 30 years.<BR>\n" );
document.write( "So her father will be twice as old as she is when she is 30 and he is 60.<BR>\n" );
document.write( "Since they are now 20 and 50, that will be 10 years from now.<br><BR>\n" );
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