Question 1150522
.
<pre>

James + Felix  = 48


J     + F      = 48


        F = J - 16,  according to the condition.


J     + (J-16) = 48


2J             = 48 + 16 = 64.


You continue from this point.


<U>ANSWER</U>.  James has 32 cards.
</pre>