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  • A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, how many tickets has she bought(A) 40 (B) 240 (C) 480 (D) 750

A girl calculates that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, how many tickets has she bought?
(A) 40              (B) 240            (C) 480            (D) 750

Answers (1)

Answer.    [C]
Solution.     Probability: probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
  Total cases = 6000
  Probability of getting first prize (p(A)) = 0.08
p(A) = \frac{Number\, of\, tickets\, the\, bought}{Total\, tickets}
0.08 × 6000 = Number of tickets the bought

\frac{8}{100}\times 6000 = Number of tickets the bought
Number of tickets the bought = 480.

 

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