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A marble is chosen at random from marbles numbered 10 to 22. Find the probability of selecting a marble having number 15 and 20 on it.

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To solve the problem of finding the probability of selecting a marble numbered 15 and 20 from the marbles numbered 10 to 22, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Range of Marbles**: The marbles are numbered from 10 to 22. This means the possible numbers on the marbles are: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22. ...
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