A student calculates that the probability of his winning the first prize in a lottery is 0.08. If 6000 tickets are sold, how many tickets has he bought?
(a) 120
(b) 240
(c) 480
(d) 760
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Solution
(c) 480
Explanation:
Let the number of tickets bought by the student be x.
Then ,
Then, x = 6000 ⨯ 0.08 = 480
So, he bought 480 tickets.