Question 1182897

Stephanie is three times older than her daughter and 10% younger than her sister.If Stephanie's sister is 40 years old,how old is Stephanie's daughter?
<pre>If "Stephanie is three times 'as old' as her daughter", then her daughter is <b><u><font color = red>12 years-old</font></b></u>.
However, if "Stephanie is three times 'older' then her daughter", then her daughter is <b><u><font color = red>9 years-old</font></b></u>.