There are 1000 tickets in the lottery, of which one ticket gives a prize of 500 rubles, 10 tickets – 100 rubles
| December 15, 2020 | education
There are 1000 tickets in the lottery, of which one ticket gives a prize of 500 rubles, 10 tickets – 100 rubles, 50 tickets – 20 rubles, 100 tickets – 5 rubles, the rest of the tickets are not winning. Someone buys 1 ticket. Find the probability of winning no more than 100 rubles.
The problem is solved by the formula of the theory of probability.
1 ticket (500 rubles) + 10 tickets (100 rubles) + 50 tickets (20 rubles) = 61 rubles.
61 beat. / 1000bill = 0.061- probability.
Answer: The probability is 0.061.
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