Question 70591
Karen needs 2 Red and 2 Blue
Lisa needs 2 Red and 2 Blue
Amy needs 2 Red and 2 Blue
Jack needs 3 Yellow and 1 Green
Mark needs 3 Yellow and 1 Green

So a total of 6 Red, 6 Blue, 6 Yellow and 2 Green will be needed.
(Each girl gets 2 Blue and 2 Yellow)
(Each boy gets 3 Red and 1 Green)