At a certain diner, Joe ordered 3 doughnuts and a cup of coffee and was charged $ 2.25. Stella ordered 2 doughnuts and a cup of coffee and was charged $ 1.50. What is the price of 2 doughnuts?	Options:	A) $ 0.55	B) $ 1.00	C) $ 1.10	D) $ 1.30	E) $ 1.50
3D + C = 2.25......(1)   2D + C = 1.5........(2)   (1) - (2) --&gt; D = 0.75 --&gt; 2D = 1.5   Answer: $ 1.50
<result>E</result>
At a certain diner, Joe ordered 3 doughnuts and a cup of coffee and was charged $ 2.25. Stella ordered 2 doughnuts and a cup of coffee and was charged $ 1.50. What is the price of 2 doughnuts?