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Question
A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, then the number of tickets she bought, is ______.
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Solution
A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, then the number of tickets she bought, is 480.
Explanation:
The probability of winning is the fraction of tickets she bought:
\[\frac{n}{6000}=0.08\]
Hence, \[n=0.08\times6000=480\] tickets.
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