SOLUTION: A deck of 10 cards consists of 7 cards that are black on both sides, and 3 cards that are black on one side and white on the other. 2 cards are selected randomly and placed flat o

Question 1078120: A deck of 10 cards consists of 7 cards that are black on both sides, and 3 cards that are black on one side
and white on the other. 2 cards are selected randomly and placed flat on the table. Calculate the
probability that 1 black and 1 white side are showing.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
So don't think of the cards as cards but think of the cards as sides of cards in a bag.
So there are 20 sides in the bag, 3 sides are white, 17 sides are black.

RELATED QUESTIONS
A deck of 10 cards consists of 7 cards that are black on both sides, and 3 cards that are (answered by Boreal)

You are dealt 2 cards from a shuffled deck of 52 cards, without replacement. There are... (answered by sudhanshu_kmr,ewatrrr)

Q.1 Two cards are drawn from a well shuffled deck of 52 cards without replacement.... (answered by Edwin McCravy)

One deck of cards consists of six cards numbered 1 through 6, and a second deck consists (answered by Fombitz)

What are the solutions: After several rounds of a card game, a deck of playing cards... (answered by edjones)

1. Suppose that two cards are drawn without replacement from a standard deck of cards.... (answered by sudhanshu_kmr)

Two cards are drawn from a shuffled deck of three red and two black cards. They are... (answered by stanbon)

In a game room, there are three decks of cards: Deck 1 contains 5 red cards and 3 black... (answered by Edwin McCravy)

You have a deck of 52 playing cards with 13 spades, 13 diamonds, 13 hearts, and 13... (answered by lynnlo)