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4020. The number of trucks traveling along the highway 2019

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Description

4020. The number of trucks traveling along the highway on which the gas station stands is one of the cars driving along the same highway as 3: 3. The probability that the truck will refuel is 0.1, for a passenger car this probability is 0.2. A car drove up to the gas station for refueling. Find the probability that this is a truck.

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Additional information

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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