Question 1135010
<pre>There cannot be any solution because:</pre>>>Rosa is twice as old as Pilar.<<<pre>This tells us that Rosa is OLDER than Pilar.  However,</pre>>>In 4 years, Rosa's age will be be 2 years less than Pilar's age 3 years ago.<<<pre>This tells us that Rosa is YOUNGER than Pilar. 
Edwin</pre