In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
P [getting a prize] =$ \dfrac{10}{(10 + 25)} $=$ \dfrac{10}{35} $=$ \dfrac{2}{7} $.
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In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize? |
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