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30 November, 17:05

500 tickets are sold for a prize draw. The probability is 1/20. How many did he buy?

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  1. 30 November, 17:15
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    The answer is 25 because you have to first do 1/20 and get 0.5 * 500
  2. 30 November, 17:31
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    You basically need to find 1/20 of 500. 1/20 of 100 is 5, so if you times 100 by 5 to make 500, and 5 times 5 it makes 25. He has bought 25 tickets
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