Question

В каждой пятой банке кофе согласно условиям акции есть приз. Призы распределены по банкам случайно. Галя покупает банку кофе в надежде выиграть приз. Найдите вероятность того, что Галя не найдет приз в своей банке.

Answer 1

1 банок из 5 это приз

значит 1/5 = 20 % шанс выиграть приз

значит 100-20 = 80 % шанс не выиграть

Answer 2

Calculation of the Probability

To find the probability that Galia will not find a prize in her coffee can, we need to determine the number of cans with prizes and the total number of cans available.

Given that every fifth can has a prize, we can calculate the probability as follows:

1. Determine the total number of cans available. 2. Determine the number of cans with prizes. 3. Calculate the probability of not finding a prize.

Let's go through each step in detail.

Step 1: Determine the Total Number of Cans Available

The problem does not provide the total number of cans available. Therefore, we cannot determine the exact probability without this information. Please provide the total number of cans available, and we can proceed with the calculation.

Step 2: Determine the Number of Cans with Prizes

Since every fifth can has a prize, we can calculate the number of cans with prizes by dividing the total number of cans by 5. However, without the total number of cans available, we cannot determine the exact number of cans with prizes.

Step 3: Calculate the Probability of Not Finding a Prize

To calculate the probability of not finding a prize, we need to divide the number of cans without prizes by the total number of cans.

Let's assume that the total number of cans available is N and the number of cans with prizes is N/5.

The number of cans without prizes is N - N/5 = 4N/5.

Therefore, the probability of not finding a prize in Galia's coffee can is 4N/5 / N = 4/5.

Thus, the probability that Galia will not find a prize in her coffee can is 4/5 or 0.8.

Please provide the total number of cans available to get a more accurate probability calculation.