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Xiaoli and Xiaona use playing cards to play games. One card in Xiaoli's hand is Wang. The probability that Xiaona draws Wang from Xiaoli's hand is 1 / 9. Try to find the number of cards in Xiaoli's hand
Xiaoli and Xiaona use playing cards to play games. One card in Xiaoli's hand is Wang. The probability that Xiaona draws Wang from Xiaoli's hand is 1 / 9. Try to find the number of cards in Xiaoli's hand
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