Question 941350
Attach a 2nd table below this one which is
a mirror image of balls A and B
Then attach a 3rd table to the right of that
table which is a mirror image of A and B in the  2nd table
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All you have to do is shoot ball A in the 1st table
and aim for B in the 3rd table
 Ball A will hit both rails in the right spots
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The rails are not included in the reflections,
only the surface that the ball rolls on
Hope this is what you need
Try drawing it