RB_CH04_Q023. Four cards shuffled water earth wind fire
difficulty ·answer type: expression·✓Not solved
Problem
Four cards are shuffled and placed face down in front of you. Their faces (hidden) display the four elements: water, earth, wind, and fire. You are to turn the cards over one at a time until you either win or lose. You win if you turn over water and earth. You lose if you turn over fire. What is the probability that you win?
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