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Q.

Kiran is deciding whether to visit Russia or Ukrain for the holidays. She makes her decision by rolling a regular 6-sided die. If she gets 1 or 2 she goes to Ukrain, if she rolls a 3, 4 or 5 she goes to Russia. If she rolls a 6 she rolls again. If the probability that she goes to Ukrain is p, then 5p is

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answer is 2.

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Detailed Solution

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On each roll, the probability that Kiran decides to go to Russia is  32 times the probability she decides to go to Ukraine, so the total probability that she goes to Russia is  32 times the total probability that she goes to Ukraine. Since the total probability is 1(they are the only two eventual outcomes) Kiran goes to Ukraine with probability  25 and Russia with probability  35.

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