<PRE><B>Question 25805</B>
Let the number of $0.15 be x
Let the number of $0.20 be 0.5x-2
Expression:
0.20(0.5x-2)+0.15x=1.60
0.1x-0.4+0.15x=1.60
0.25x=2
x=8
0.5(8)-2 = 2


Hence, there were 8 $0.15 cards and 2 $0.20 cards.
Paul.


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