A Card marked 1 and 2 on its two faces. Two colors, white and black are used to paint the two faces of the card. If the card is painted with the different colors, in how many ways can the card be painted?
Choose the correct option:
A) 3	B) 6	C) 2	D) 12	E) 27
If the base of the card is white, then in order the card to be painted with the different colors, the top must be white.Another side can be painted in Black.   But we can have the base painted in either of the two colors, thus the total number of ways to paint the card is  2*1= 
<gadget id="calculator"> 2*1</gadget>
<output>2</output>
2.   Answer: 2.
<result>C</result>
A Card marked 1 and 2 on its two faces. Two colors, white and black are used to paint the two faces of the card. If the card is painted with the different colors, in how many ways can the card be painted?