<PRE><B>Question 1092490</B>
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&lt;pre&gt;
The older sister is 30 years old.                           &lt;&lt;&lt;---=== GIVEN !


Hence, the younger sister is 30-5 = 25 years old.           &lt;&lt;&lt;---=== From the condition.


It implies that the age of the father is 2*25 = 50 years.   &lt;&lt;&lt;---=== From the condition.
&lt;/pre&gt;

Solved.


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